実 験 項 第4章 0.96 (s, 6H); 13C NMR (100 MHz, CDCh) o 170.8, 167.5, 147.5, 1日34.3 129.8, 123.9, 70.4, 63.9, 59.0, 51.9, 39.5, 34.9, 32.9, 32.4, 28.3, 282, .19.8, 19.4; ESI・HRMSm1z calcd for C19H3005 (M+Nat 361.1991, found 361.1997.
~OTBS
111
Alkyne. To a solution of propargyl alcohol (7.45 mL, 124.9 mmol) in dichloromethane (250 mL) was added imidazole (9.35 g, 137.4 mmol) and tert‑butyldimethylsilyl chloride (20.7 g, 137.4 mmol) at room tempera加re. After the mixture was stirred for 1 h at room temperature,日20was added, and the resulting mixture was extracted with dichloromethane. The organic layers were combined, washed with brine, dried over MgS04, filtered and concentrated的vacuoto give the crude alkyne (24.9 g, quant.).
GU R U + k
T E
o b fi 山 出
1 2 α
Ester. To a solution of alkyne (12.96 g, 76.1 mmol) in tetrahydrofuran (380 mL) was 1.6 mol/l butyllithium Hexane solution (56.9 mL, 91.3 mmol) at ‑78 oC. After stirring ‑78 oc for 30 min, chloroformic acid ethyl ester (10.1 mL, 106.5 mmol) was added and sti汀edroom temperature for an additional 1.5 h. After stirring, cooled to 0 oC, H20 was added. The resulting mixture was extracted with ethyl acetate. The organic layers were combined, wash with brine, dried over MgS04, filtered and concentrated in vαcuo to the crude products. Column chromatography on silica gel (from5% to 10% ethyl acetate in Hexane) gave the corresponding alcohol product (13.2 g, 72%) as a yellow oil: IR (KBr disk, cmぺ)2238, 1715, 1245,834; 1H NMR (400 MHz, CDCh)δ4.43 (s, 2H), 4.23 (q, 2H, J= 7.3 Hz), 1.31 (t, 3H, J= 6.9 Hz), 0.91 (s, 9H), 0.13 (s, 6H); 13C NMR (100 MHz, CDCh) o 153.3,85.7,62.0,51.4, 25.7, 18.2, 14.0, ‑5.27; ESI寸‑IRMSm1z calcd for C12H2203Si1 (M+Nat 265.1236 found 265.1235.
t
Tetrasubstituted vinyliodide. To a suspension of the copper bromide (1) (11.6 g, 80.7 mmol) in THF (160 mL) was added a 1.0 M. solution of ethylmagnesium bromide (173 ml, 177.5 mmol) in THF (160 mL) at ‑78 o
c .
After the mixture was stirred at this temperature for 1 h, a solution of ester 35 (13.0 g, 53.8 mmol) was added at ‑78 oC, and stirred at room temperatu陀
for 10 min. lodine (45.3 g, 178.4 mmol) was added at this temperature, and stirred for an additional at this temperature for 10 min. The reaction mixture was added saturated aqueous sodium thiosulfate and the result mixture was extracted with ethyl acetate. The organic layers were combined, washed with brine, dried over MgS04, filtered and concentrated in vαcuo to give crude products which were purified by column chromatography on silica gel gave vinyliodide (16.8 g, 79%, Z : E口 1: 2) as a yellow oil: IR (KBr disk, cm‑ 1)1717,1228,837; 1H NMR (400 MHz, CDCh) o 4.32(s, 2H), 4.22(q, 2H, J= 7.3 Hz), 2.53(q, 2H, J= 7.3 Hz), 1.33(t, 3H, J口 7.3Hz), 1.08(t, 3H, J=
7.3 Hz), 0.92(s, 9H), 0.11(s, 6H); 13C NMR (100 MHz, CDCh) o 157.1, 70.6, 62.2, 32.1, 25.8, 18.2, 13.3, 11.4, ‑5.4; ESI・HRMSm/Z calcd for C14H27I03Si1 (M+Nat 421.0672 found 421.0673.
実 験 項 第4章 3.37 (s, 3H), 2.29帽2.16(m, lH), 1.84ぺ.70(m, lH), 1.28 (t, 3H, J= 7.3 Hz), 0.95 (t, 3H, J = 7.3 Hz); 13C NMR (100 MHz, CDCh)δ173.0, 166.4, 142.8, 138, .4 130.7, 128.7, 128.7, 126.6, 70, .463.8, 60.8, 58.9, 44.9, 34.9, 23.1, 14, .1 12.2; ESI欄HRMSm/z calcd for C19H2605 (M+Nat 357.1678, found 357.1686.
OH
T附8凶 悶SωO
; ム よ X 入
C匂Diおe釘叩no叫1.To a so叶luti拍onofvinyl iodide 22 (1.269 g, 4.955 mmol) and 4‑(tel・t‑ butyldimethylsiloxy)幽トbutenylstannane(2.827 g, 5.946 mmol) in dimethyl formamide (25.0 mL) were added dichlorobis (triphenylphosphine)palladium (11) (174 mg, 0.248 mmol) and copper iodide (944 mg, 4.955 mmol) at room tempera同re.After the reaction mixture was stirred at 80 oC for 2 h, aqueous NH3 solution was added, and the resulting mixture was extracted with ethyl acetate. The organic layers were combined, washed with brine, dried over MgS04, filtered and concentrated in vacuo to give the crude products. Column chromatography on silica gel (from 2% to 17% ethyl acetate in hexane) gave the dienol (1.403 g, 86%) as a yellow oil.
0....
、
TBSO""'"¥¥/ノ¥¥グ少¥C02Et
2‑(2ィ'ert品utyldimethylsiloxyethyl)‑4開ethoxycarbooyl‑2H‑pyrao(40d). To a solution ofthe dienol (500 mg, 1.522 mmol) in dichloromethane (15.0 mL) was added manganese dioxide (5.000 g) at room temperature, and the reaction mixture was stirred for 40 min. It was filtered, and the filtrate was concentrated in vacuo to give the crude products which were purified by column chromatography on silica gel (from 1% to 5% ethyl acetate in hexane) to a旺ordthe 2H‑pyran 40d (391 mg, 79%) as a yellow oil: IR (neat, cm‑1) 2929,1720,1255,1095,834; lH NMR (400 MHz, CDCb) o 6.46‑6.38 (m, lH), 6.31幽6.26(m, lH), 5.68‑5.61 (m, lH), 4.98‑4.90 (m, lH), 4.26‑4.16 (m, 2H), 3.80幽3.72(m, 2H), 2.15幽2.01(m, lH), 1.90ぺ.78(m, lH), 1.30 (t, 3H, J 7.1 Hz), 0.89 (s, 9H), 0.06 (s, 6H); 13C NMR (100 MHz, CDCh) o 164.5, 145.2, 127 .4,1262,.99.9, 71.7, 60.8, 58.6, 36.3,25.9, 18.2, 14.2岨5,.4; ESI‑HRMS m/z calcd for C16H2804Sil (M+Nat 335.1655, found 335.1654.
O ...0\/\O~
TBSO〆戸¥....../¥..::;::?ヘC02Et
2‑幽‑Me制e凶tho侃xy戸et白hy刊1(3劫E
z
乃)‑'ヴ7下川幽べ(t附ee例r',rt岨b加u勾tyldi困me削e凶t均h匂矧y刊rサIs討i叫ilo町xy)凶幽Jふ3幽e凶th加ox勾yc伺ar巾bo叩o町Eηyl北l幽h
恥epμteooate(μ40p). To a solution ofthe 2H‑pyran 40d (30.0 mg, 0.918 mmol) in toluene (3.7 mL) was added 2‑methoxyethanol (0.9 rnL) at room temperature. After the solution was stirred under reflux for 3 h, it was cooled to room temperature and concentrated in vαcuo to give the crude ester products. Column chromatography on silica gel (from 9% to 20% ethyl acetate in hexane) gave the ester 40p (28.4 mg, 77%) as a yellow oil: IR (neat, cm‑1) 2929, 141, 1710, 1098,835; lH NMR (400 MHz, CDCh) o 6.99 (t, lH, J = 7.8 Hz
0トi
~ーイ《ャ人COっ日 1
:
11 11 V'"'2
可 / 、N‑
Ts
Dieool. To a solution of the (E)・‑stannane(11.0 g, 18.8 mmol) and the vinyl iodide (4.94 g, 19.3 mmol) in DMF (160 mL) were added tetrakis(triphenylphos欄 phine)palladium(O)(1.08 g, 0.938 mmol) and lithium chloride (1.59 g, 37.5 mmol) at room temperature. After the reaction mixture was stirred at 115 oC for 30 min, 10% aqueous NH3 solution was added, and the resulting mixture was extracted with ether. The organic layers were
combined, washed with brine, dried over MgS04, filtered and concentrated in vacuo to give the crude products. Rough purification by column chromatography on silica gel (from 25% to 50% ethyl acetate in hexane) gave the corresponding alcohol (5.14 g, 64%) as a yellow oil which was oxidized without further puri自cation.
O
ケ l
rグ可γーでr~ 、 COっ Et
l J l . J
V'"'2ミ / 、N‑
Ts
E出yl (E占)‑4‑0xo‑2‑[(N幽p‑tolueoesulfooyliodolふyl)‑vioyl]but‑2‑ eooate 42. To a solution of the crude alcohol thus obtained (750 mg, 1.76 mmol) in dichloromethane (20 mL) was added manganese dioxide (20 g) at room temperature, and the mixture was stirred for 13 min. The reaction mixture was filtered and concentrated in vacuo to give the crude products which were purified by column chromatography on silica gel (gradually from 17% to 25% ethyl acetate in hexane) to afford the desired aldehyde 47 (500 mg, 67%) as a yellow oil: IR (neat, cm̲l) 1723, 1672, 1613, 1447, 1373, 1175, 1127, 976; lH NMR (400 MHz, CDCh) d 1.39 (t, 3H, J = 7.1託z), 2.35 (s, 3H), 4.37 (q, 2H, J= 7.3 Hz), 6.67 (d, lH, J= 6.8 Hz), 7.22‑7.27 (m, 3H), 7.32‑7.41 (m, 2H), 7.54 (d, lH, J= 16.1 Hz), 7.79嗣7.82(m, 4H), 8.02 (d, lH, J= 8.1 Hz), 10.17 (d, lH, J口 6.8Hz); 13C NMR (100 MHz, CDCb) d 14.1,21.6,62.1,113.9, 119.6, 119.9, 120.5, 124.1, 125.5, 127.0, 127.2, 128.0, 130.1, 130, .4132.7, 134.7, 135ム145.5,145.7, 166 .3,191.2; EI HRMS m/e calcd for C23H21N05S (M+・)423.1139, found 423.1144.
O ...0¥/'¥O
C02Et
2‑帽Me抗tl加E凶ox可ye仙ぬthyl (3め幽δふι5幽(N‑p‑幽Tolue印oe郎su凶lfi和00町yl伽i加odω01‑醐Jふ33幽y州l1り)ふ ethoxycarbol狙lyl帽トJふふ3.欄‑刷 予 .p
solution of diぬen泌叫a叫142(σ54.0 mg, 0.127 mmol) in toluene (5.0 mL) was added 2‑methoxyethanol (1.3 mL) at room tempera知re.After the solution was stirred under reflux for 4 h, it was cooled to room tempera加re and concentrated in vacuo to give the crude ester products. Column chromatography on silica gel (from 13%ω33% ethyl acetate in hexane) gave the ester 42p (35.5mg, 56%) as a yellow oil and the cyclized by‑ product 42c (10.1 mg, 19%) as a yellow solid: Data for 42p: IR (neat, cm斗) 2920, 1734, 1708, 1172, 752; lH NMR (400 MHz, CDCb)δ7.98 (d, lH, J=
8.2 Hz), 7.76 (d, 2H, J= 8.3 Hz), 7.75 (d, lH, J= 7.7 Hz), 7.36 (s, lH), 7.35欄 7.30 (m, lH), 7.25‑7.19 (m, 3H), 7.13 (t, lH, J= 7.3 Hz), 4.28‑4.19 (m, 4H), 3.61蝿3.53(m, 4H), 3.50 (s, 2H), 3.36 (s, 3H), 2.34 (s, 3H), 1.29 (t, 3H, J口
7.1 Hz); 13C NMR (100 MHz, CDCh)δ170, .5166.5, 144.9, 141.4, 135 .3, 135 .3,130 .4,129.9, 127 3,.126.8, 124.9, 123 .4,123.2, 119 .3,119.1, 113.8, 70 .3, 64.0, 61.1, 59.0, 32, .324.7, 21.6, 14.2; ESI‑HRMS m/z calcd for C26H29NI07S1 (M+Nat 522.1562, found 522.1553: Data for 42c: IR (neat, cm‑1) 2923, 1712, 1692, 1359, 1170, 753; lH NMR (400 MHz, CDCb) o 10.53‑10.51 (m, lH), 7.95 (d, lH, J= 8.5註z),7.61 (d, 2H, J口 8.3Hz), 7.44 (d,IH,J口 7.5Hz), 7.38 (dd, lH, J= 8.5, 8.5 Hz), 7.34‑7.30 (m, lH), 7.23 (d, 2H, J= 8.2 Hz), 7.12 (dd, lH, J= 7.6, 7.5 Hz), 6.30幽6.26(m, lH), 4.92 (dd, lH, J= 15.1,3.7 Hz), 4.50 (d, lH, J= 15.1 Hz),4.30幽4.21(m, 2H), 2.35 (s, 3H), 1.32 (t, 3H, J = 7.4 Hz); 13C NMR (100 MHz, CDCh)δ202.3, 166ム 1450, 138.8, 134.7, 132.1, 131.4, 129.8, 127.9, 126.6, 124.7, 124, .4121.7, 116.1, 110.2, 63.8, 61.3, 51.2, 29.7, 21.6, 14.3; ESI‑HRMS m/z calcd for C23註21N105S1(M+Nat 446.1038, found 446.1022.
EtO
i r
パ ャ ヘ.......SnBuO
Ethyl
ρ (
2Eι
,4E劫1り)ふ(仔Tr吋'i寸‑0ト刷‑b加ut併yμf唯Istaooy拘lり)peot旬ad副ie叩00倒a払
te払.Tおo a THF (ο26ω O mL) solution of sodium hydride (ο2.96 g, 77.4 mmol) was added dropwise山
1 1 7 ω
実 験 項 第4章 diethylphosphonoacetic acid ethyl ester (15.4 mL, 77.4 mmol) at醐15oC over 30 min. The reaction mix加rewas stirred at剛15oC for 30 min, and a THF (50 mL) solution of (E)・3‑tri‑nゐutylstannylpropenal(20.5 g, 59.5 mmol) was added at this temperature. After the mixture was warmed to room temperature and stirred for an additional 1 h, H20 was added, and the resulting mixture was extracted with ether. The organic layers were combined, washed with saturated NaHC03 solution and brine, dried over MgS04, filtered, and concentrated in vacuo to give the crude products. Column chromatography on silica gel (5% ethyl acetate in hexane) gave ester as a colorless oil that was reduced without further purification: IR (neat, cm幽1)1717, 1626, 1462, 1294, 1273, 1211, 1152; lH NMR (400 MHz, CDCh) d 0.87‑0.96 (m, 15H) including 0.89 (t, 9H, J) 7.3 Hz), 1.24‑1.35 (m, 9H)including 1.29(t,3H,J)7.1 Hz), 1.46‑1.54 (m,6H),4.21 (q,2H,J)7.1 Hz), 5.80 (d, lH, J) 15.4 Hz), 6.65 (ddd, lH, J) 18.8,10,.20.5 Hz), 6.81 (d,
lH, J) 18.8 Hz), 7.19 (dd, lH, J) 15.4, 10.3 Hz); 13C NMR (100 MHz, CDCh) d 9.6, 13.7, 14.3,2γ.2,29.0,60.3, 119.9, 144.2, 146.3, 147.2, 167.4; FAB HRMS m
々
calcdfor C19H3702118Sn (恥tI+ H)+ 415.1809, found 415.1783.HO
、 / 、
γ戸 、 /
SnBU3Alcohol. To an ether (250 mL) solution oflithium aluminum hydride was added dropwise an ether (60 mL) solution ofthe ester obtained above at 0 oC over 30 min. After the mixture was warmed to room temperature and stirred for an additional 40 min,日20was carefully added, and the resulting mixture was extracted with ether. The organic layers were combined, washed with H20, saturated NH4Cl solutionラ 1N HCl solution, and brine, dried over MgS04, filtered, and concentrated in vαcuo to give the crude products. Column chromatography on silica gel (gradually from 5% to 20% ethyl acetate in hexane) gave the corresponding alcohol (19.7 g, 89%台omthe aldehyde) as a colorless oil: IR (neat, cm‑l) 3314, 2957, 2926, 2872, 2853, 1462, 1084, 999; lH NMR (400 MHz, CDCI3) d 0.82・0.99 (m, 15H) including 0.89 (t, 9H, J) 7.3 Hz), 1.2ふ1.35(m, 6H), 1.42‑1.58 (m, 6H), 4.20 (t, 2H, J) 5.9 Hz), 5.79 (dt, lH, J) 15.9, 5.9 Hz), 6.24 (ddm, lH, J) 15 .4, 9.8 Hz), 6.26 (d, lH, J) 18.8 Hz), 6.54 (dd, lH, J) 18.8,9.8 Hz); 13C NMR (100 MHz, CDCh)δ9.5, 13.7,272,.29,.163.3, 130.7, 134ム135.1,145.9.
TBSO~、v、/SnBU3
(IE,3E)幽ト(Tri幽Fトbutylstannyl)ふtert‑butyldimethylsiloxypentadiene. To a DMF (200 mL) solution of the alcohol obtained above (19.7 g, 52.9 mmol) were added 4幡(dimethylamino)pyridine(DMAP) (3.23 g, 26.4 mmol), triethylamine (11.0 mL, 79.3 mmol), and tert‑butyldimethylchlorosilal1e (TBDMSCI) (7.97 g, 52.9 mmol) at room temperature. After the reaction mixture was stirred at room temperature for 1 h, H20 was added, and the resulting mixture was extracted with ether. The organic layers were combined, washed with brine, dried over MgS04, filtered, and concentrated il1 Vαcuo to give the crude products. Column chromatography on silica gel (from 2% to 3% ethyl acetate in hexane) gave 4 (22.1 g, 86%) as a colorless oil: IR (neat, cm欄1)1462, 1377, 1254, 1105, 1057, 1001; lH NMR (400 MHz, CDCh) d 0.08 (s, 6H), 0.87‑0.96 (m, 24H) including 0.89 (t, 9H, J) 7.1 Hz) and 0.92 (s, 9H), 1.26ぺ.35(m, 6H), 1.42‑1.58 (m, 6H), 4.23 (dd, 2H, J) 5.1,1.2 Hz), 5.71 (dt, lHヲJ)15.1,4.9 Hz), 6.19 (d, lH,J) 18.5 Hz), 6.21 (ddm, lH, J) 15.1, 10.5 Hz), 6.53 (dd, lH, J) 18.8,9.8 Hz); 13C NMR (100 MHz, CDCI3)δ・5.2,9.5,13.7,18.3,26.0,27.3,29.1,634,.131.5,133.1, 133, .4 146.3; EI HRMS m/e calcd for C19H39‑OSil18Sn (M ‑Bu)+
429.1784, found 429.1758. OH
T問、~~Jl¥ / ¥ 、 / 可 / 、C02Et
Dienol. To a solution of the previously prepared vinylstannane (10.8 g, 22.1 mmoI) and vinyl bromide (5.54 g, 26.5 mmol) in D
were combined, washed with brine, dried over MgS04, filtered, and concentrated il1 vacuo to give the crude products. Column chromatography on silica gel (gradually 9% to 33% ethyl acetate in hexane) gave the corresponding alcohol (5.15 g, 71%) as a colorless oil: IR (neat, cm‑l) 3436, 1719, 1464, 1258, 1105, 1063, 1030,992; lH NMR (400 MHz, CDCh) d 0.08 (s, 6H), 0.92 (s, 9H), l.32 (t, 3H, J= 7.1 Hz), 4.25 (q, 2H, J口 7.1Hz), 4.26 (brd, 2H, J = 2.4 Hz), 4.49 (brd, 2H, J口 5.1Hz), 5.88 (dt, lH, J口 15.1, 4.9 Hz), 6.28 (d, lH, J ココ 15.6 Hz), 6.32 (ddt, lH, J = 151, .10.5, 1.7 Hz), 6.52 (dd, lH, J = 15.6, 10.5 Hz), 6.73 (t, lH, J = 6.1 Hz); 13C NMR (100 MHz, CDCh) dδ.3, 14.2, 18,.425.9,59.8,61.0,633, .123.5, 129.7, 130.6,
135.0,135.2,140.1,166.7. O W 可1 TBSO、~¥ / ¥ 、 / 、 も / 、
、 ' /
¥ AC02Et
Ethyl (E,E,E)幽4‑0xo‑2‑(5闘tert欄butyldimethylsiloxy帽1,み pentadienyl)but‑2欄enoate(43). To a solution ofthe alcohol obtained above (5.15 g, 15.8 mmol) in dichloromethane (150 mL) was added manganese dioxide (100 g) at room temperature, and the mixture was stirred for 30 min. The reaction mixture was filtered and concentrated in vacuo to give the crude products, which were purified by column chromatography on silica gel (合om 11% to 25% ethyl acetate in hexane) to afford 43 (4.07 g, 80%) as a yellow oiI: IR (neat, cm‑l) 1726, 1674, 1597, 1464, 1375, 1252, 1128; lH NMR (400 MHz, CDC13) d 0.08 (s, 6H), 0.92 (s, 9H), 1.34 (t, 3H, J) 7.1 Hz), 4.29 (brd, 2H, J) 3.4 Hz), 4.31 (q, 2H, J) 7.1 Hz), 6.07 (dt, lH, J) 15,.14.6 Hz), 6.41‑6.48 (m, lH), 6.53 (d, lH, J) 7.3耳z),6.75‑6.85 (m, 2H), 10.09 (dd, lH, J) 7.3, 0.7 Hz); 13C NMR (100 MHz, CDC13)δδ.4, 14.1, 18.4,25.9,61.9, 63.0, 121.7ヲ128,.4130.5, 140.0, 141.5, 146.0, 166.3, 191.2; EI HRMS m/e calcd for C17H2804Si (M+) 324.1755, found 324.1765.
TBSO¥O
fγ
、H¥ ン 、C02Et
Ethyl (6‑formyl‑5ィ'ert‑butyldim ethylsilyloxymethyl‑l,み cyclohexadienyl)carboxylate (43c). To a solution of dienal 43 (24.0 mg, 0.074 mmol) in toluene (3.0 mL) was added 2‑methoxyethanol (0.7 mL) at room temperature. After the solution was stirred under ref1ux for 4 h, it was cooled to room temperature and concentrated il1 vacuo to give the crude ester products. Column chromatography on silica gel (from 2% to 25% ethyl acetate in hexane) gave the cyclized product 43c (8.5 mg, 35%) as a yellow oil: IR (neat, cm‑1) 2929, 1716, 1255, 1098, 836; IH NMR (400 MHz, CDCh) o 9.57 (s, lH), 7.21 (d, lH, J = 5.5 Hz), 6.10 (dd, lH, J口 9.4,5.5 Hz), 6.03 (dd, lH, J = 9ム5.5Hz), 4.31‑4.22 (m, 2H), 3.86・3.82(br d, lH), 3.61 (dd, lH, J口 9.8,5.3Hz), 3.30 (dd, lH, J= 9.7,9.1 Hz), 3.21‑3.12 (m, lH), 1.32 (t, 3H, J= 7.1 Hz), 0.87 (s, 9H), 0.18 (s, 6H); 13C NMR (100 MHz, CDCh)δ199.5, 166.5, 134.6, 133.6, 124.2, 122, .462.1, 60.9, 46.7, 36 .4, 25.8, 18.2, 14.2, 欄5.5,‑5.6; ESI冊目RMSm/z calcd for C17H2804Sil (M十Na)十 347.1655, found 347.1642.
/ ¥ , Bu 0=コく 〉・川O Ph/¥、グ件、、C0
2Et
2,3‑tralls‑3・Butoxy・2幽(E幽みphenyl・トethoxycarbonylpropenylト cyclobutanone (47). To a solution of dienal 27 (31.6 mg, 1.37 mmol) in toluene (5.2 mL) was added butylvinylether (1.3 mL) at room temperature. After the solution was stirred under ref1ux for 3 h, it was cooled to room tempera加reand concentrated il1 vαcuo to give the crude products. Column chromatography on silica gel (from 6% to 9% ethyl acetate in hexane) followed by HPLC トJ(omuraChemical co. DevelosiI CN心G開5column with
f1
実 験 項 第4章 4.8 Hz), 4.30幽4.24(m, lH), 4.22‑4.12 (m, 2H), 3.583.53 (m, 2H), 3.52‑3.38 (m, 3H), 3.07 (ddd, lH, J= 17.9,4.8,3.7 Hz), 1.62‑1.52 (m, 2H), 1.44‑1.32 (m,2H), 1.27 (t, 3H, J = 7.1 Hz), 0.93 (t, 3H, J = 7.3 Hz); 13C NMR (100 MHz, CDCh) o 204.2, 166.2, 143.5, 137ム128.8,128.6, 128.2, 126.7, 70.5, 69.8,65.4,61.1,51.9,35.2,31.8, 19.3, 14.1, 13.9; ESI‑HRMS m1z calcd for C2oH2604 (M+Nat 353.1729, found 353.1712.
Ph OロコくN )"'Ph
Ph/へ\~\C02Et
3,4 醐trans‑1,4‑心iゆpheny刊r司1‑剛ふ(E柵‑3.刷欄刷予
azet討i泊d副凶in漉か欄2‑欄one付(48的).すoa solution of dienal 27 (31.6 mg, 0.137 mmol) in toluene (5.2 mL) was added N‑phenylbenzylimine (70.8 mg, 0.391 mmol) at room temperature. After the solution was stirred under reflux for 3 h, it was cooled to room temperature and concentrated in vacuo to give the crude products. Column chromatography on silica gel (from 6% to 9% ethyl acetate in hexane) gave the s‑Iactam 48 (43.0 mg, 76%) as a yellow oil: IR (neat, cmぺ)2981, 1756, 1708, 1499, 1029; lH NMR (400 MHz, CDCh) o 7.42‑7.28 (m, 7H), 7.2ふ7.14(m, 6討),7.04 (t, lH, J= 7.3 Hz), 6.96 (d, 2H, J
= 7.4 Hz), 5.04‑5.00 (m, lH), 4.28‑4.24 (m, lH), 4.18 (q, 2H, J口 7.1Hz), 3.41 (dd, lH, J= 15.6, 7.3狂z),3.32 (dd, lH, J= 15ム8.5Hz), 1.11 (t, 3H, J
= 7.1 Hz); 13C NMR (100 MHz, CDCI3) o 165.8, 165.7, 146.5, 138.1, 137.9, 137.4, 129.3, 129.0, 128.8, 128.7, 128.6, 126.7, 125.9, 125.5, 123.8, 116.9, 61.2,60.5,58.6,34.9, 13.9; ESI・HRMSm1z calcd for C27H2SNI03 (M+Nat 434.1732, found 434.1725.
Me
N 0=コ( )"'Ph Ph/へ¥戸ヘC02Et
3,4・trallS‑トMethyl‑4・phenyl幽3ぺE・3・phenyl欄ト
ethoxycarbonylpropenyl)‑azetidirト2・・one(49). To a solution of dienal 27 (31.6 mg, 0.137 mmol) in toluene (5.2 mL) was added N幽methylbenzylimine (48.8 mg, 0.410 mrnol) at room tempera加re.After the solution was stirred under reflux for 3 h, it was cooled to room temperature and concentrated in v
αcuo to give the crude products. Column chromatography on silica gel (from 17% to 33% ethyl acetate in hexane) gave the やlactam49 (34.2 mg, 71 %) as a orange oil: IR (neat, cm‑1) 2981, 1758, 1705, 1246, 734; lH NMR (400 MHz, CDCh)δ7.46・7.28(m, 5H), 7.22‑7.14 (m, 3H), 7.10 (t, lH, J=
7.3 Hz), 6.9ふ6.90(m, 2H), 4.57‑4.53 (d, lH, J = 2.2 Hz), 4.31‑4.18 (m, 2H), 4.13‑4.08 (br s, lH), 3.42‑3.32 (dd, lH, J= 15.5, 7.3 Hz), 3.34嗣3.24(dd, lH, J = 15.5, 8.5 Hz), 2.88 (s, 3H), 1.30 (t, 3H, J口 7.1Hz); 13C NMR (100 MHz, CDCh) o 168.6, 166.0, 145.7, 137.8, 137.5, 129.1, 128.7, 128.6, 128.5, 126.6, 126.2, 125.7, 62.0, 61.0, 59.1, 34.8, 27.7, 14.2; ESI幽HRMSm1z calcd for C22H23NI03 (M+Nat 372.1576, found 372.1578.
Bn 0=コ( )N ・けPh Ph/¥グヘCO
2日
3,4ィ'ralls‑1‑Ben司11‑4欄phenyl欄み(E欄みphenyl幽L
ethoxycarbonylpropenyl)幽azetidin・2畑O滋e(50). To a solution of dienal 27 (34.1 mg, 0.148 mmol) in toluene (5.2 mL) was added N‑benzylbenzylimine (76 mg, 0.391 mmol) at room temperature. After the solution was stirred under reflux for 3 h, it was cooled to room temperature and concentrated in vacuo to give the crude products. Column chromatography on silica gel (from 5% to 33% ethyl acetate in hexane) gave the s柵lactam50 (50.8 mg, 81%) as a yellow oil: IR (neat, cmぺ)1757,1708, 1455, 1251, 1455,699; lH NMR (400 MHz, CDCh)δ7.4ル7.32(m, 3H), 7.28幽7.22(m, 7H), 7.2ト7.14 (m, 3H), 7.07 (t, lH, J口 7.5Hz), 6.92‑6.84 (m, 2H), 4.81 (d, lH, J = 14.9 Hz), 4.49 (d, lH, J口 3.5Hz), 4.20 (d, lH, J口 2.4Hz), 4.18‑4.07 (m, 2H), 4.02 (d, lH, J = 14.9 Hz), 3.38・3.22(m, 2H), 1.18 (t, 3H, J = 7.1 Hz); 13C NMR (100 MHz, CDCh)δ168.0, 165.8, 145.6, 137.5, 137.4, 135.2, 129.0.,
128.9, 128.6, 128.6, 128.5, 127.5, 126.5, 126.5, 125.6,60.9,60.4,58.5,45.1,
34.8,14.1; ESI寸IRMSmlz calcd for C28H27NI03 (M+Na)十448.1889,found 448.1876.
?02正t N Oごく,N‑C02Et Ph/'¥グ ヘC02Et
1,2‑Bis( ethoxycarbonyl)‑4ぺιみphenyl幽1‑ethoxycarbonylpropenyl)‑ diazetidin幽みone(51). To a solution of dienal 27 (30.8 mg, 0.134 mmol) in toluene (5.2 mL) was added DEAD (70 mg, 0.401 mmol) at room tempera加re.After the solution was stirred under reflux for 3 h, it was cooled to room temperature and concentrated in vacuo to give the crude products. Column chromatography on silica gel (from 6% to 25% ethyl acetate in hexane) gave the 1,2・diazeti川崎3‑one51 (30 mg, 56%) as a yellow oil: IR (neat, cmぺ)2983, 1847, 1716, 1247, 751; lH NMR (400 MHz, CDCh) o 7.36・7.26(m, 4H), 7.24‑7.18 (m, 2H), 5.88 (s, lH), 4.44 (q, 2H, J口 7.1Hz), 4.34‑4.14 (m, 4H), 3.77 (dd, lH, J = 16.3,8.0 Hz), 3.66 (dd, lH, J = 16, .3 7.1詰z),1.41 (t, 3H, J = 71. Hz), 1.32・1.20(m, 6耳);13C NMR (100 MHz, CDCh)δ164.4, 162.8, 159.7, 150.2, 149.3, 136.7, 128.9, 128.6, 128.6, 127, .1 124.1, 72.5, 64.0, 63.9, 61.7, 34.8, 14, .3 13.9; ESI‑HRMS m1z calcd for C2oH24N207 (M+Nat 427.1481, found 427.1500.
902iPr
O = <
N 汗C02iPr Ph/¥グ ヘC02Et1,2‑Bis(iso・propoxycarbonyl)‑4幽(E幽みphenyl欄ト
ethoxycarbonylpropenyl)‑diazetidhト3幽one(52). To a solution of dienal 27 (37.0 mg, 0.161 mmol) in toluene (5.1 mL) was added DIAD (97 mg, 0.482 mmol) at room tempera旬re.After the solution was stirred under reflux for 3 h, it was cooled to room temperature and concentrated in vacuo to give the crude products. Column chromatography on silica gel (from 3% to 33% ethyl acetate in hexane) gave the 1,2‑diazetini幽3‑one52 (32.9 mg, 47%) as a yellow oil: IR (neat, cm‑1) 2983, 1847, 1764, 1715, 1102; lH NMR (400 MHz, CDCh) o 7.38‑7.24 (m, 4H), 7.24‑7.19 (m, 2H), 5.84 (s, 1担),5.18(sep,
lH, J= 6.2 Hz), 5.03 (sep, lH, J口 6.2Hz), 4.28‑4.15 (m, 2H), 3.76 (dd, lH, J口 16.2,8.0 Hz), 3.67 (dd, lH, J = 16.2, 7.3 Hz), 1.39 (d, 6H, J = 6.2 Hz), 1.2仏1.22(m, 9H); 13C NMR (100 MHz, CDCh)δ164.4, 163.0, 159.4, 150.0, 148.9, 136.8, 128.9, 128.7, 127 .l, 124.2, 72.4, 72 .4,72.2, 61,6, 34.8, 21.8, 21.7, 日13.9矢;ES剖1‑幽幽幽幽岨在.圃i
455.1779.
県
y y O M ej
3‑ketoester. To a solution of dihydro個十ionone(10.0 g, 51.5 mmol) in toluene (100 mL) was added sodium hydride (60% dispersion in mineral oil, 3.71 g, 92.6 mmol) and dimethyl carbonate (7.8 mL, 92.6 mmol) at 0 oC. After stirring for 2 h under reflux condition, aqueous 4 N HCI was added. The resulting mixture was extracted with ethyl acetate. The organic layers were combined, wash with brine, dried over MgS04, filtered and concentrated in vacuo to the crude products. Column chromatography on silica gel (企om0% to 6% ethyl acetate in Hexane) gave the corresponding s・ ketoester (9.80 g, 75%) as a white solid.
C02Me
/ ¥,
‑'人 λOノペ、村 v
Bicyclic 詳細ketoester(63). To as solution of sββ岨 北 長 .
mmolり)in d必ichloromethane(150 mLυ) was added tin(οIV) chloride (9.7 mL, 53.0 mmo叫1)a侃t幽‑10o
c .
After stirring for 15 h at room temperature, aqueous 4 N HCI was added. The resulting mixture was extracted with dichloromethane. The organic layers were combined, wash with saturated aqueous NaHC03 and brine, dried over MgS04, filtered and concentrated in vacuo to the司
119‑
実 験 項 第4章 crude products. Purification by column chromatography on silica gel (from 0% to 6% ethyl acetate in Hexane) followed by recrystallization 企omhexane gave the corresponding bicyclic ・3fketoester(6.11 g, 82%) as a white crystal.
f
ふ l f
、司づ
0Acetal (64). To a solution of the bicyclic ・3fketoester63 (200 mg, 0.792 mmol) in benzene (8 mL) was added ethylene glycol (0.090 mL, 1.585 mmol) and p‑Toluenesulfonic acid monohydrate (45.2 mg, 0.238 mmol) at room temperature. After stirring at ref1ux condition for 3 h, a saturated aqueous NaHC03 solution was added. The resulting mixture was extracted with ethyl acetate. The organic layers were combined, wash with brine, dried over MgS04, filtered and concentrated in vαcuo to the crude products. Column chromatography on silica gel (from 5.0% to 10% ethyl acetate in Hexane) gave the acetal product 64 (226 mg, 96%) as a yellow solid: IR (neat, cm陶1)2953, 1734, 1435, 779; IH NMR (400 MHz, CDCb) o 4.0下4.09 (m, lH), 3.92‑3.94 (m, lH), 3.83‑3.85 (m, lH), 3.73‑3.74 (m, lH), 3.63 (s, 3H), 2.50 (s, lH), 1.85 (ddd, lH, J = 12 .4,6.0, 2.7 Hz), 1.52‑1.64 (m, 5H), 1.39‑1.43 (m, 4H), 1.23 (s, 3H), 1.14‑1.18 (m, 2H), 0.93 (dd, lH, J口 11.9, 3.2 Hz), 0.88 (s, 3H), 0.85 (s, 3H); 13C NMR (100 MHz, CDCb) o 171.3, 109.2, 65.5, 63.9, 62.7, 54.7, 51.0, 41.9, 39.7, 39.1, 37.6, 33.6, 33 .2,21.5, 19.9, 18.3, 14.6; ESI寸fRMSmlz calcd for C17H2804 (M+Na)十319.1885 found 319.1890.
Alcohol . To a solution ofthe acetal 64 (3.87 g, 13.1 mmol) in ether (130 mL) was added lithium alminium hydride (1.49 g, 39.2 mmol) at 0 oC. After stirring at room temperature for 3.5 h, cooled to 0 oC, H20 was added. The resulting mixture was extracted with ethyl acetate. The organic layers were combined, wash with brine, dried over MgS04, filtered and concentrated in vacuo to the crude products. Column chromatography on silica gel (from 20% to 33% ethyl acetate in Hexane) gave the alcohol product (3.18 g, 91%) as a white solid: IR (neat, cm‑I) 3689, 1435, 779; IH NMR (400 MHz, CDCh) o 4.04‑4.09 (m, 2H), 3.89‑3.93 (m, 3H), 3.60輔3.63(m, lH), 3.0ト 3.01 (m, lH), 1.93・1.96(m, lH), 1.8ト1.84(m, lH), 1.59‑1.66 (m, 5H), 1.36・ 1.39 (m, 4H), 1.12嗣1.18(m, 2H), 0.93・0.96(m, lH), 0.85 (s, 3H), 0.81 (s, 3H); 13C NMR (100 MHz, CDCb)δ1124,.65札62.7,59.0,58.8,55.0,41.8, 39.5,38.3,35.5,33.7,33.3,21.7, 19ム18ム15.5;ESI‑HRMS m1z calcd for CI6H2803 (M+Na)十291.1936found 291.1939.
aldehyde (66). To a solution of oxalyl chloride (0.798 mL, 9.32 mmol) in dichloromethane (20 mL) was added dimethyl sulfoxide (0.78 mL, 11.18 mmol) at ‑78 oC After the mixture was stirred for 10 min at this temperature, a solution of alcohol (1.00 g, 3.73 mmol) in dichloromethane (17 mL) was added and stirred for 10 min. After stirring, the mixture was added triethylamine (2.62 mL, 18.6 mmol) and stirred for 5 min at this temperature, additional 15 min at room tempera加re,H20 was added , The resulting mixture was extracted with chloroforrn. The organic layer was washed with sodium hydrogen carbonate, brine, dried over MgS04, filtered and concentrated in vacuo to give the crude products. Column chromatography on silica gel (from 5% to 10% ethyl acetate in Hexane) gave aldehyde 66 (908 mg, 91%) as a yellow solid: IR (neat, cm‑I) 1714, 1522, 779; IH NMR
67.8, 65.2, 63.6, 54,.441.7, 39.9, 39.5, 36, .133.6, 33.3, 21.8, 19.7, 18.1, 16.3; ESI・HRMSm1z calcd for CI6H2603 (M+Nat289.1780 found 289.1777.
Alkyne (67).すoa solution of the diisopropyl ethylamine (1.6 mL, 11.45 mmol) in tetrahydrofuran (34 mL) was added 1.6 mol/I butyllithium in Haxane solution (6.8 mL, 10.77 mmol) at ‑78 oC. After stirring at ‑78 oC condition for 30 min, (trimethylsilyl)diazomethane 2.0 M in ether was added. After stirring at幽78oC condition for 30 min, aldehyde 66 in tetrahydrofuran (34 mL) was added. A食erthe mixture was stirred for 15 min at room temperature, H20 was added. The resulting mixture was extracted with ethyl acetate. The organic layers were combined, wash with brine, dried over MgS04, filtered and concentrated in vacuo to the crude products. Column chromatography on silica gel (from 5.0% to 10% ethyl acetate in狂exane) gave the alkyne 67 (1.462 g, 83%) as a white solid: IR (KBr disk, cmぺ)3307, 1475,779; IH NMR (400 MHz, CDCI3) o 4.19‑4.20 (m, lH), 4.0ふ4.08(m, lH), 3.92‑3.93 (m, 2H), 2.41‑2.41 (m, lH), 2.07 (d, lH, J = 2.7 Hz), 1.82‑ 1.88 (m, 2H), 1.58‑1.63 (m, 3H), 1.39‑1.45 (m, 4H), 1.15・1.16(m, lH), 1.11 (s, 3H), 0.98ぺ.01(m, lH), 0.88 (s, 3H), 0.83 (s, 3H); 13C NMR (100 MHz, CDCb)δ109, .482.3, 72.0, 66.2, 64.8, 54.1, 53.7, 42.0, 40.0, 38.9, 37.2, 334,.33.2,21.6, 19.7, 18.5, 15.2.
Vinylstannane (58). To a solution of the acethylene product (1.15g, 4.36 mmol) in tetrahydrofuran (22 mL) was added tetrakis (triphenylphosphine)palIadium (256 mg, 0.438 mmol) and tributhyltinhydride (3.5mL, 13.14 mmol) at 90 oC. After stirring at ref1ux condition for 3 h, cooled to room temperature and concentrated in vacuo to give crude products. Column chromatography on silica gel (from 2.5% to 5%
ethyl acetate in Hexane) gave the vinylstannane 58 (1.036 g, 43%) as a colorless oil and recovery (1.15 g, 54%) as a white solid: IR (neat, cmぺ) 2927, 1464, 1028, 779; IH NMR (400 MHz, CDCb) o 7.32‑7.33 (m, lH), 5.91幽5.92(m, 2H), 3.85‑3.96 (m, 3H), 3.71‑3.74 (m, lH), 1.95 (d, lH, J 6.9 Hz), 1.84‑1.88 (m, lH), 1.27‑1.61 (m,22H), 1.13醐1.17(m, lH), 3.14 (s, 3H), 0.84‑0.89 (m, 24H); 13C NMR (100 MHz, CDCh)δ144.8,137.2,137.1, 133.8,133.6,133.1,128.7,128.5,128.4,110.6,67.8,65.4, 64.2, 54.8,42.1, 40.3,38.2,37.4,33.7,334,.29.2,27.3,21.9,20.1,18.5, 15.2, 13.7,9.5; ESI‑ HRMS mlz calcd白rC29Hs402Snl (M+Nat 577.3049 found 577.3070.
∞ ぺ ノ
o ︑ Jh
刈 ノ
Dienol (68). To a suspension of the alcohol' product (322 mg, 1.287 mmol) and the vinyl stannane 58 (836 mg, 1.51 mmol) in DMF (12 mL) were added dichlorbis (triphenylphosphine)palladium (45.2 mg, 0.064 mmol) and copper iode (245 mg, 1.287 mmol) at 80 oC. After stirring at ref1ux condition for 1 h, cooled to room temperature and H20 was added. The resulting mixture was extracted with ethyl acetate. The organic layers were combined, wash with brine, dried over MgS04, filtered and concentrated的 v
αcuo to the crude products. Column chromatography on silica gel (from 10% to 25% ethyl acetate in Hexane) gave the corresponding alcohol68 (414 mg, 82%) as a yellow oil: IR (KBr disk,cm‑I) 3219, 2936, 1716, 1222, 754; IH NMR (400 MHzCDCb)δ6.69 (tlH 6.0 Hz)60 (dlH
実 験 項 第4章 1.13‑1.17 (m, lH), 0.99 (s, 3H), 0.92‑0.93 (m, 2H), 0.89 (s, 3H), 0.84 (s, 3H); 13C NMR (100 MHz, CDCh) o 167.0, 139.1, 133.7, 126.0, 110.3,65 .4, 63.9,63.2,60.8,60.0,54.8,42.0,40.5,38.7,37.0, 33.6, 33.3, 21.8, 21.0, 19.9, 18.5, 15.3, 14.2; ESI‑HRMS m/z calcd for C23H360S (M+Nat 415.2460 found 415.2443.
Dienal (59). To a suspention ofthe alcohol 58 (710 mg, 1.808 mmol) and in dichloromethane (18 mL) was added manganese dioxide (7.1 g, 8.17 mmol) at room temperature. After stirring was for 15 min, The resulting mixture filtered with ethyl acetate and concentrated in vacuo to the crude products. Column chromatography on silica gel (from 5% to 20% ethyl acetate in Hexane) gave the corresponding aldehyde 59 (630 mg, 89%) as a yellow solid: IR (neat, cm‑I) 1721, 1215, 1075, 750; IH NMR (400 MHz, CDCb) o 10.1 (d, lH, J= 14.6 Hz), 6.58 (dd, 2H, J= 13.7,7.8 Hz), 6.20 (dd, lH,J出 15.6,9.6 Hz), 4.29 (q, 2H, J出 7.3Hz), 3.89‑3.94 (m, 3H), 3.70・3.74 (m, lH), 2.20 (d, lH, J= 9.6 Hz), 1.92ぺ.95(m, lH), 1.39‑1.62 (m, 9H), 1.33 (t, 3H, J= 7.3 Hz), 1.13‑1.19 (m, lH), 1.01 (s, 3H), 0.92‑0.95 (m, 2H), 0.90 (s, 3H), 0.85 (s, 3H); 13C NMR (100 MHz, CDCI3) o 166ム146.8,142.2, 131.4, 124.9, 110.1,65.3,63.8,63.2,61.8,54.7,41.9,40.7,39.2,36.7,33.6, 33, .421.8, 21.0, 19.9, 18.4, 15.4, 14.1; ESI‑HRMS m/z calcd for C23H360S (M十MeOH十Nat445.2566 found 445.2545.
Ester (60). To a solution of the aldehyde 59 (43 mg, 0.11 mmol) and in toluene (4.4 mL) was added 2‑methoxyethanol (1.1 mL) at room temperature. After stirring at reflux condition for 50 min, cooled to room temperature. The resulting mixture filtered with ethyl acetate and concentrated in vacuo to the crude products. Column chromatography on silica gel (from 5% to 20%伐材i acetate in Hexane) gave the corresponding ester 60 (45 mg, 88 %) as a yellow oil: IR (neat, cmぺ)2938, 1716, 1222, 1028, 756; IH NMR (400 MHz, CDCb) o 7.07 (t, 3H, J = 6.9 Hz), 4.23 (t, 2H, J口 4.6Hz), 4.20 (q, 2H, J口
6.9 Hz), 3.93‑3.98 (m, 2H), 3.84‑3.86 (m, 1託),3.70‑3.72 (m, lH), 3.58 (t, 2H, J = 4.6 Hz), 3.38 (s, 3H), 2.24‑2.28 (m, lH), 2.10‑2.11 (m, lH), 1.90幽
1.93 (m, lH), 1.5仏1.63(m, 4H), 1.36ぺ.40(m, 4H), 1.25‑1.27 (m, 4H), 1.14欄 1.15 (m, lH), 0.94‑0.95 (m, lH), 0.91 (s, 3H), 0.88 (s, 3H), 0.82 (s, 3H); 13C NMR(100 MHz, CDCb)δ171.1, 149.0, 122.9, 110.8, 70.4, 64.9, 63.7, 62.9, 60.5,59.0,57.4,55.1,41.8,39.8,39.1,35.9,33.6,32.2, 23.4, 21.8, 21.0, 19.7,
18.6, 14.6, 14.2; ESI幽HRMSm/z calcd for C21狂3604(M+Na)十375.2511 found 375.2525.
Diol (69). To a solution ofthe ester 60 (607 mg, 1.30 mmol) in ether (13 mL) was added lithium alminium hydride (197 mg, 5.20 mmol) at 0 oC. After stirring at temperature for 50 min, cooled to 0 oc,日20was added. The resulting mixture was extracted with ethyl acetate. The organic layers were combined, wash with brine, dried over MgS04, filtered and concentrated in vacuo to the crude products. Column chromatography on silica gel (from 33% to 50% ethyl acetate in Hexane) gave the diol 69 (395 mg, 86%) as a white solid: IR (KBr disk, cmぺ)3212, 2936, 2846, 1220, 784; IH NMR (400 MHz, CDCb) o 5.65 (t, lH, J = 6.9 Hz), 3.87‑4.04 (m, 5H), 3.69・3.75(m, 3H), 2.56‑3.00 (brs, 2H), 2.37‑2.45 (m, 2H), 2.10・2.14(m, lH), 1.90・1.98(m, 2H), 1.52‑1.73 (m, 5H), 1.25‑1.46 (m, 7H), 1.11‑1.18 (m, lH), 0.94‑0.98 (m,
lH), 0.91 (s, 3H), 0.87 (s, 3H), 0.82 (s, 3H); 13C NMR (100 MHz, CDCb) o 134.8, 133.7, 111.5,68.6,64.9,63,1,61.5,58.1,55.2,41.9,39.7,39,.435.9, 33.6, 33.2, 324, .21.9, 21.7, 19.8, 18.5, 14.5; ESI‑HR民1Smlz calcd for C2IH3604 (M十Nat375.2511 found 375.3546.
HO~OH
/ ¥ 1 /人 λO
ノ又 H ‑
Ketone. To a solution of the diol 69 (73 mg, 0.21 mmol) in acetone (1 mL) was added aqueous 2 N HCI (0.4 mL) at room tempera加re.Af主er stirring at room t(;lmperature for 25 min, cooled to 0 oC, a saturated aqueous NaHC03 solution was added. The resulting mixture was extracted with ethyl acetate. The organic layers were combined, wash with brine, dried over MgS04, filtered and concentrated in vacuo tothe crude products. Column chromatography on silica gel (from 33% to 50% ethyl acetate in Hexane) gave the ketone (68 mg, quant) as a colorless oil: IR (neat, cmぺ)3388, 2954, 1703, 1390, 1038,779; IH NMR (400 MHz, CDCb)δ5.40 (t, 2H, J = 6.9 Hz), 3.99 (dd, 2琵,J口 17.9,11.9 Hz), 3.73欄3.79(m, 2H), 2.40‑2.50 (m, 4H), 2.31 (ddd, lH, J= 20.6, 13.3, 7.3 Hz), 2.16幽2.19(m, lH), 2.00‑2.08 (m, 2H), 1.76‑1.79 (m, lH), 1.48・1.63(m, 7H), 1.24幽1.27(m, 4H), 0.97 (s, 3H), 0.85 (s,3註),0.74(s, 3H); 13C NMR (100 MHz, CDCb)δ136.1, 130.7,68.1,64.6, 61.4,54.3,42.7,42.5,41.8,39.3,33.7,33.5,32.2,24.0, 21.7, 21.0, 20.5,19.0, 14.7; ESI幽HRMSmlz calcd for CI9H3203 (M+Nat 331.2249 found 331.2148.
n u
T o
m
pL
T︐
disiloxyketone (71). To a solution of the alcohol product (68 mg, 0.22 mmol) in dichloromethane (2.2 mL) was imidazole (63 mg, 0.924 mmol) and tert‑buthyldimethylsilylchrolide (133 mg, 0.88 mmol) at 0 oC. After stirring at 0 oC for 30 min, H20 was added. The resulting mixture was extracted with chloroform. The organic layers were combined, wash with brine, dried over MgS04, filtered and concentrated in vacuo to the crude products. Column chromatography on silica gel (企om2% to 5% ethyl acetate in Hexane) gave the corresponding ketone 71 (114 mg, 96%) as a colorless oil: IR (KBr disk, cm‑I) 1706, 1471, 1072, 779; 1世NMR(400 MHz, CDCh)δ5.37 (t, lH, J = 6.9 Hz), 3.96‑4.04 (m, 2H), 3.64・3.65(m, 2H), 2.25‑2.40 (m, 5H), 2.03‑2.12 (m, 3H), 1.78‑1.81 (m, lH), 1.63 (dd, lH, J = 13.3, 5.0 Hz), 1.47ぺ.53(m, 4H), 1.23‑1.27 (m, 3H), 0.96 (s, 3H), 0.89 (s, 9H), 0.88 (s, 9H), 0.82 (s, 3H), 0.73 (s, 3H), 0.05 (s, 6H), 0.02 (sヲ6H);13C NMR(100 MHz, CDCI3) O 211.5,
135, .4126.8,67.6,64.9,62.1,54.3,42.7,42.5,41.9,39.4,33.7, 33.5, 31.9, 26.0,26.0,24.0,21.7,20.1, 19.0, 18.4, 14ム14.2,‑5.2, ‑5.3; ESI‑HRMS m/z calcd for C3IH6003Si2 (M十Nat559.3979 found 559.3973.
円 ︒
ねu
申io
︿ 刈
10
; ; ;
JVE‑‑VIl‑‑ホlMH
O U
︿
×
s u /
¥ /
ロ ロ
︐
ii z︑
T'
Epoxide (72). To a solution of sodium hydride in oil (20 mg, 0.50 mmol) in tetrahydrofuran (2 ml) was added dimethyl sulfoxide (2.0 mL, 20 mL I mmol) and trimethylsulfonium iodide (106 mg, 0.52 mmol) and ketone 71 (53 mg, 0.10 mmol) at 0 oC. After the mixture was stirred for 3 h at this temperature, cooled to 0 oC, H20 was added. The resulting mixture extracted with ethyl acetate. The organic layers were combined, wash with brine, dried over MgS04, filtered and concentrated in vacuo to the crude products. Column chromatography on silica gel (from 2% to 5% ethyl acetate in Hexane) gave the epoxide 72 (33 mg, 61%) as a colorless oil: IR (KBr disk, cmぺ)1471,779; IH NMR (400 MHz, CDCb)δ5.29 (t, lH, J= 6.0 Hz), 4.01 (s, 2H), 3.62 (t, 2H, J= 7.3 Hz), 2.60 (d, 1註,J=4.1 Hz), 2.22‑2.27 (m, 3H), 1.93‑1.95 (m, lH), 1.88 (dd, lH, J口 13.3,5.5Hz), 1.78‑1.81 (m, lH), 1.60幽
幽
121
幽実 験 項 第4章 1.66 (m, 5H), 1.3仏1.46(m, 3H), 1.31‑1.35 (m, lH), 1.17‑1.21 (m, lH), 0.96・ 1.03 (m, 2H), 0.91 (s, 3H), 0.90 (s, 12H), 0.88 (s, 9 H), 0.86 (s, 3H), 0.04 (s, 12H); J3C NMR (100 MHz, CDCh) o 135.0, 128.7,67.3,61.7,57.7,55.1, 53.3,49.3,42.0,39.8,39.2,36.1,33.6,33.5,32.3, 26.0, 25.9, 21.7, 20.1,19.5, 18.6, 18.3, 14.6, 5.3, 5 .3, 5.2; ESI同日RMS m/z calcd for C32H6203Sh (M+Nat 573.4135 found 573.4108.
HO、 / ¥ / ¥
1 1 '"'"
/¥↓戸、、i 1....0
J又H~
Epoxydiol. To a solution of the epoxide 72 (32 mg, 0.06 mmol) in tetrahydrofuran (1 mL) was tetrabuthylammmoniumfuloride (0.04 mL, 0.139 mmol) at room temperature. After stirring at room tempera加refor 2 h, cooled to 0 oC, a saturated aqueous NH4Cl solution was added. The resulting mixture was extracted with ethyl acetate. The organic layers were combined, wash with brine, dried over MgS04, filtered and concentrated in vacuo to the crude products. Column chromatography on silica gel (from 33% to 50%
ethyl acetate in Hexane) gave the diol (17 mg, 89%) as a white solid: IR (KBr disk, cm‑I) 3689, 2360, 1522,928, 779; IH NMR (400 MHz, CDCh) o 5.38 (t, lH, J= 6.0 Hz), 3.99 (s, 2H), 3.67‑3.71 (m, 2H), 2.90嗣3.10(brs, 2H), 2.55 (d, lH, J= 4.1 Hz), 2.34‑2.38 (m, 2H), 2.26 (d, lH, J= 4.1 Hz), 1.94 (dd, lH, J= 16.0,5.0 Hz), 1.89 (dd, lH, J= 13.3,5.0 Hz), 1.75‑1.78 (m, lH),
1.58‑1.66 (m, 4H), 1.39‑1.48 (m, 3H), 1.31‑1.35 (m, lH), 1.16‑1.20 (m, lH), 0.99ぺ.02(m, 2H), 0.90 (s, 3H), 0.89 (s, 3H), 0.86 (s, 3H); 13C NMR (100 MHz, CDCh) o 135.7, 133.3, 68.4, 61.2, 57.7, 55.0, 53.1, 49.2, 42.0, 39.7, 39.1, 36.0, 33.5, 33.5, 32.8, 21.7, 20.1, 19.9, 18.6, 14.6; ESI‑HRMS m/z ca1cd for C2oH3403 (M+Nat 345.2406 found 345.2410.
O
UH
C 1 0
; ;
C E ι 1 1
小
H .
H
¥ /
¥
o f
﹀
Aframodial. To a suspension of the diol (17 mg, 0.05 mmol) in ethyl acetate (3 mL) was 2‑iodoxybenzoic acid (73 mg, 0.26 mmol) at room temperature. After stirring at 80 oC for 3 h, cooled to room temperature. The resu1ting mixture filtered and concentrated in vαcuo to the crude products. Column chromatography on silica gel (会om10% to 20% ethyl acetate in Hexane) gave the a合amodial(11 mg, 63%) as a white solid: IR (KBr disk, cmぺ)2929, 2725, 1728, 1684, 1390, 1024,771; IH NMR (400 MHz, CDCh) o 9.63 (s, lH), 9.40 (s, lH), 6.66 (t, lH, J= 6.9 Hz), 3.46 (d, lH, J= 16.9討z),3.36(d,lH,J= 16.9Hz),2.42(d, lH,J=3.7Hz),2.31 (d, lH, J = 4.1 Hz), 2.19 (dd, lH, J口 17.9,5.5 Hz), 1.90・1.95(m, 2H), 1.60‑ 1.70 (m, 7H), 1.39‑1.48 (m, 4H), 1.17‑1.22 (m, lH), 1.02 (dd, lH, J= 11.9,
3.2 Hz), 0.96‑0.98 (m, lH), 0.93 (s, 3H), 0.91 (s, 3H), 0.87 (s, 3H); 13C NMR (100 MHz, CDCh) o 196.8, 193.1, 160.3, 135.1,57.5,54.9,52.6,48.8,41.8, 39.8, 39.3, 35.7, 33.5, 33.5, 22.2, 21.7, 20.0, 18.5, 14.6; ESI‑HRMS m/z ca1cd for C2oH3003 (M+Nat 341.2093 found 341.2103.
OH
~Jl .--O
Ph"'‑¥V¥J、TBDPS
Siloxymethyldienol (105). To a solution of vinyl iodide 104 (1.025 g, 2.267 mmol) and phenylvinylstannane (1.055g, 2.683 mmol) in 1,4幽dioxane (10 mL) were added dichlorobis (triphenylphosphine)palladium (II) (76 mg, 0.108mmol) and copper iodide (519 mg, 2.725 mmol) at room tempera加re. A会erthe reaction mixture was stirred at 80 oC for 3 h, aqueous NH3 solution was added, and the resulting mixture was extracted with ethyl acetate. The organic layers were combined, washed with brine, dried over MgS04,
O
/
H'、、
A.‑‑QPh"'‑、 / ¥ / 、TBDPS
(E,E)・3・(tert‑Butyldiphenylsiloxymethyl)嗣ふphenyl‑2んpentadienal (106).τo a solution of the dienol 105 (244.5 mg, 0.570 mmol) in dichloromethane (10 mL) was added manganese dioxide (4.04 g) at room temperature, and the reaction mixture was stirred for 1 h. It was filtered, and the filtrate was concentrated in vαcuo to give the crude products which were purified by column chromatography on silica gel (from 3% to 5% ethyl acetate in hexane) to a百ordthe dienal106 (153.0 mg, 63%) as a pale yellow oi¥: IR (neat, cm‑I) 2930, 2857, 1661, 1111, 823; IH NMR (400 MHz, CDCh) o 10.32 (d, lH, J= 7.8 Hz), 7.74‑7.68 (m, 6H), 7.57 (d, lH, J= 16.5 Hz),7.48ヴ.27(m, 9H), 6.72 (d, lH, J= 16.5 Hz), 6.51 (d, lH, J口 7.8Hz), 4.62 (s, lH), 1.10 (s, 9H); 13C NMR (100 MHz, CDCI3) o 190.7, 155.7, 135.5, 135.4, 134.7, 132.7, 130.0, 129.2, 128.8, 127.9, 127.9, 127.1, 124.9, 120.5, 63.2, 26.7, 19.2; ESI・HRMSrnIz ca¥cd for C28H3002SiI (M+Nat 449.1913, found 449.1899.
O ...0\/\O~
Ph/\~ゾo、 TBDPS
2‑九1ethoxyethyl 5欄phenyl‑3‑(tert欄butyldiphenylsiloxymethyl)‑3蛸 pentenoate (106p). To a solution of dienal 106 (34.3 mg, 0.0804 mmol) in toluene (3.0 mL) was added 2‑methoxyethanol (0.7 mL) at room temperature. After the reaction mixture was stirred at reflux for 24.0 h, it concentrated in vacuo to give the crude ester products. Column chromatography on silica gel (from 5% to 9% ethyl acetate in hexane) gave the starting material (17.6 mg, 51 %) as a mixture of diastereomer at C2 and the ester 106p (9.9 mg, 25%) as a pale yellow oil: IR (neat, cm‑I) 2930, 2857, 1735ヲ1428,1112, 701; IH NMR (400 MHz, CDCh) o 7.6ふ7.62(m, 4H), 7.43‑7.25 (m, 8H), 7.22幽7.14 (m, 3H), 5.79 (t, lH, J = 7.5 Hz), 4.22 (s, 2H), 4.20‑4.16 (m, 2H), 3.54欄3.50 (m, 2H), 3.44 (d, 2H, J= 7.5 Hz), 3.33 (s, 3H), 3.28 (s, 2H), 1.04 (s, 9H); 13C NMR (100 MHz, CDCI3) o 171.1, 140.3, 135.5, 133ム132.1,129.6, 128.4,
127.7, 127.6, 126.070.3,67.7,63.7,58.9,33.9,33.3,26.8, 19.2; ESI四日RMS m/z ca¥cd for C3IH3804SiI (M+Nat 525.2437, found 525.2411.
OH
V
~Me
inyl iodide. To a solution of 2ゐutyrト1・01(2.1 mL, 2.0 g, 28.53 mmol) in ether (30 mL) was added ReιAI@ (13.2 mL" 9.23 g, 45.66 mmol, 70%toluene solution) at・78 oC. After the mixture was stirred at room temperature for over night, cooled to ‑78 oC and slowly added a solution of iodine (22.45 g, 88.44 mmol) in ether (30 mL). After the mixture was stirred and warmed gradually to room temperature for 3 h, a saturated aqueous potassium sodium tertarate solution and a aqueous sodium thiosulfate solution was added and the resulting mixture was extracted with ether. The organic layers were combined, washed with brine, dried over MgS04, filtered, and concentrated in vαcuo to give the crude products. Column chromatography on silica gel (13% to 22% ethyl acetate in Hexane) gave a¥cohol (4.11 g, 73%) as yellow oil.
OH
M
Dieno l.To a solution of vinyl iodide (1.009 g, 5.097 mmol) and cyclohexenylvinylstannane (3.196 g, 7.275 mmol) in DMF (14 mL) were added dichlorobis (triphenylphosphine)palladium (II) (179 mg, 0.255 mmol) and lithium chloride (445 mg, 10.50 mmol) at room temperature. After the
実 験 項 第4章 on silica gel (合om13% to 17% ethyl acetate in hexane) gave the dienol (432.8 mg, 39%) as a pale yellow oil.
O H' il
~入Me
Dienal (6). To a solution of the dienol (190.6 mg, 0.8649 mmol) in dichloromethane (9 mL) was added manganese dioxide (4.039 g) at room temperature, and the reaction mixture was stirred for 1.5 h. It was filtered, and the filtrate was concentrated in vαcuo to give the crude products which were purified by column chromatography on silica gel (from 3% to 5% ethyl acetate in hexane) to a町ordthe dienal6 (82.8 mg, 44%) as a pale yellow oil:
ぽ
M e + M eCyclized products (8,9). A solution of dienal 6 (16.6 mg, 0.076 mmol) in toluene (3.0 mL) was stirred at reflux for 7.0 h, and it concentrated in vacuo to give the crude products. Column chromatography on silica gel (from 2.0%
to 3.2% ethyl acetate in hexane) gave the mixture of tricyc1ic compounds 8 and 9 (7.1 mg, 43%, 1 1) as a colorless oil and the mixture of starting material and its diastereomers (5.8 mg, 35%) as a yellow oil.
と ぽ ω ∞
2MeCyclized products (111,112). To a solution of dienal38 (15.2 mg,0.058 mmol) was added toluene (2.3 mL) at room temperature. After the mixture was stiηed at reflux condition for 15 min, cooled to room temperature. The resulting mixture concentrated in vacuo to the crude products. Column chromatography on silica gel (from 5% to 20% ethyl acetate in Hexane) gave the corresponding tricyc1ic compound 112 (8.4 mg, 55 %) as a colorless oil and 111 (5.8 mg, 38%) as a yellow oil. Data for 112: IR (KBr disk, cmぺ) 2870, 1716, 1247, 1066,755; lH NMR (400 MHz, CDCh) o 6.82(t, lH, J
3.2 Hz), 3.73・3.72(m,3H), 3.39(s, lH), 2.80幽2.72(m,2H), 1.99帽1.95(m, lH), 1.6ト1.59(m,lH), 1.4ふ1.45(m,3H), 1.34‑1.28(m, 2H), 1.13(s, 6H), 0.76(s, 3H); 13C NMR (100 MHz, CDCh) o 165.2, 136.3, 132.8,68.8,63.9, 52.0, 38.7, 36.8, 33.9, 32.9, 32.1, 28.8, 25.6, 22.7, 18.1, 14.5; ESI‑HRMS m/Z ca1cd for C16H2203 (M+Nat 285.1467 found 285.1471. Data for 111: IR (KBr disk, cm‑1) 2947,2934,2872, 1713, 1205,716; lH NMR (400 MHz, CDCI3) o 6.89る.89(m,lH), 4.32(s, lH), 3.77(s, 3H), 2.74‑2.73(m, 2H), 1.87‑1.83(m, lH), 1.64‑1.42(m, 7H), 1.16(s, 3H), 1.01(s, 3H), 0.83(s, 3H);; 13CNMR(10
∞
OMHz,丸CDCl七3)o 164.0, 146ム1口32ム6侃8ム624,.5引1.8,5引1.5 35.8, 33.9, 33.0, 29ム26.5,24.4, 20.7, 16.3, 12.2; ESI醐HRMSm/z ca1cd for CI6H2203 (M十Nat285.1467 found 285.1464.四
123‑
実 験 項 第5章
(KBrdisk, cm‑1) 3250, 2984,1721,1692,1611,1443,1253,1084,974,814; lH NMR (400 MHz, CDCh) o 8.31 (s, lH), 8.01同7.92(m, 3H), 7.50‑7.45 (m, 2H),7.37・7.31(m, 5H), 7.21 (d, lH, J= 18.7 Hz), 6.19 (s, lH), 4.34 (q, 2H, J = 7.2 Hz), 2.43 (s, 3H), 1.36 (t, 3H, J = 7.2 Hz); J3C NMR (100 MHz, CDCh)δ166.6, 162.5, 145.8, 145.4, 141.2, 136.2, 135.7, 129.9, 129.7, 128.9, 128.6, 128.1, 120.6, 120.5, 62.3, 21.9, 14.3; ESI HRMS m/:: calcd for C21H21NI0SSl (M剛H)¥398.1062,found 398.1045.
O Ts、N...J丸、 Ph/‑‑¥グ¥C02Et 第5章
o
人 1
︿i(幻Z)‑4ふ.噌e凶引t加hE帥ox町y'九.嗣ふ
(ρ2.68 g, 10.5 mmol) in THF (42 mL) and t‑BuOH (42 mL) were added 2‑methyl‑2‑butene (5.9 mL, 5.27 mmol) and a solution of NaCI02 (1.24 g, 13.7 mmol) and NaH2P04・2H20(1.81g, 11.6 mmol) in H20 (32 mL) at 0 oc. After the mixture was stirred for 3 h at room tempera加re,a saturated aqueous NaHC03 solution was added, and the resulting mixture was extracted with saturated aqueous NaHC03 solution. The aqueous layers were combined, and a 2 N HCl solution (50 mL) was added, and the resulting mixture was extracted with ethyl acetate. The organic layers were combined, washed with brine, dried over MgS04, filtered and concentrated in vacuo to give carboxylic acid 2 (2.56 g, 90%) as yellow solid: IR (KBr disk, cmぺ) 3059, 2986, 1728, 1697, 1300, 1032, 762; lH NMR (400 MHz, CDCh) o 7.64 (s, lH), 4.34 (q, 2H, J= 7.2 Hz), 1.36 (t, 3H, J = 7.2 Hz); J3C NMR (100 MHz, CDCh)δ168.9, 162.8, 135.9, 106.3,63.9, 13.9; ESI HRMS m/:: not detected.
O Ts、../に
H
1....、C02Et(z)欄ethyl 2‑iodo‑4幽(4‑methylphenylsulfonamido)‑4幽oxobut‑2・enoate (4). To a solution of carboxylic acid (1.54 g, 3.31 mmol) in THF (15 mL) was added 入んmethylmorphorine(0.47 mL, 4.31 mmol) at 0 oc. After the mixture was stirred for 10 min at this tempera知re,isobutyl chloroformate (0.52 mL, 3.98 mmol) was added. After the mixture was stirred at this temperature for 15 min, a saturated aqueous NH4Cl solution was added and the resulting mixture was extracted with ethyl acetate. The organic layers were combined, washed with brine, dried over MgS04, filtered, and concentrated in vαcuo to give the crude products. Column chromatography on silica gel (from 6.6% to 9.0% ethyl acetate in Hexane) gave mixed anhydride (1.76 g, 95%) as yellow oi l.To a suspension of sodium hydride (562 mg, 14.0 mmol, 60% in oil) in THF (45 mL) was addedptoluenesulfonamide (2.04 g, 11.9 mmol) at o oC.Af王erthe mixture was stirred for 10 min. at this temperature, a solution of the produced mixed anhydride a町ordedabove (4.00 g, 10.8 mmol) in THF (5 mL) was added. After the mixture was stirred for 2 h at room temperature, a saturated aqueous NaHC03 solution was added, and the resulting mixture was extracted with saturated aqueous NaHC03 solution. The aqueous layers were combinedヲanda 2 N HCl solution (50 mL) was added, and the resulting mixture was extraeted with ethyl acetate. The organic layers were combined, washed with brine, dried over MgS04, filtered and concentrated的vαcuoto give N‑sulfonyl amide 4 (4.31 g, 94%) as a yellow solid: IR (KBr disk, cm‑1) 3232, 2982, 1693, 1599, 1449, 1367, 1252,810, 702; lH NMR (400 MHz, CDCh) o 7.99 (d, 2H, J= 8.8 Hz), 7.62 (s, lH), 7.36 (d, 2H, J= 8.4 Hz), 4.31 (q, 2H, J= 7.6 Hz), 2.46 (s, 3H), 1.34 (t, 3H, J口 7.2Hz); 13C NMR (100 MHz, CDCh) o 162.6, 161.2, 145ム 136.9, 135.0, 129.7, 128ム103.1,64.1,21.7,13.9;ESI HRMS m/z ca1cd for CJ3HI4IINI0SSI (M‑H)¥421.9559, found 421.9540.
O γS
, . . ^ ‑
日
11Ph...
、 . . . . . . . .
'C02Et(2E,4劫 ふethoxycarbonylふphenyl‑Nヤ幽toluenesulfonyl)輔2,4‑pentadine namide (1). To a solution of N‑sulfonyl amide 4 (1.00 g, 2.36 mmol) in Dioxane (20 mL) were added vinyl stannane 5 (1.21 g, 3.07 mmol) in Dioxane (5 mL), dichloro bis(triphenylphosphine)palladium(II) (166 mg, 0.236 mmol) and copper iodide(I) (540 mg, 2.84 mmol) at room tempera加re. After the mixture was stirred at 80 oc for 1 hcooled to room temperature
ふethoxycarbonyl幽ふphenyl‑1・(p欄toluenesulfonylト1
,
6・dihydropyridin‑2(3 Hトone(3).Thermal cyclization. A solution of dienamide 1 (20 mg, 0.050 mmol) in o‑xylene (2mL) was stirred for 3 h at 130 oc.. The resulting mixture was cooled to room temperature, concentrated in vacuo to give the crude products. Column chromatography on silica gel (from 9.0% to 50% ethyl acetate in Hexane) gave八んsulfonyllactam 3 (20 mg, quatnt) as yellow amorphous solid: IR (Neat, cm‑1) 3034, 2929,1721,1708,1598,1456,1370, 1264, 1173, 893 ; lH NMR (400 MHz, CDCh) o 7.42‑7.31 (m, 5H), 7.24‑7.16 (m, 2H), 7.09 (d, 2H, J 8.4 Hz), 7.03 (dd, lH, J= 6, 2.8 Hz), 6.17 (dt, lH,J口 22.0,2.8Hz), 4.25‑4.13 (m, 2H), 3.56 (dd, lH,J= 22.4,2.4 Hz), 3.34 (dt, lH, J口 22.0,2.8 Hz), 2.35 (s, 3H), 1.25 (t, 3H, J口 7.2Hz); 13C NMR (100 MHz, CDCh) o 166.9, 1644, . 144.9, 137.9, 135.2, 134.8, 129.3, 129.2, 128.8ヲ127.4, 123.7, 61.6, 61.4, 33.4, 21.6, 14.1; ESI HR恥1S m/Z ca1cd for C21H21NI0SSl (M+Na)¥422.1062, found 422.1055.
Lewis Acid Asymmetric Cyclization (TiCh(ORh). To a suspension of molecular sieves 4A in toluene were added titan chrolide (2.0 eq) and chiral diol (2.0 eq) at room temperature. After the mixture was stirred at this temperature for 30 min, dienamide (1.0 eq) was added and the mixture was stirred at 100 oC. After the starting material was disappeared checked by TLC, H20 was added and the resulting mixture was extracted with ethyl acetate. The organic layers were combined, washed with brine, dried over MgS04, filtered, and concentrated in vacuo to give the crude products. Column chromatography on silica gel (合om6.6% to 17% ethyl acetate in Hexane) gave入んsulfonyllactam 3 as yellow amorphous solid.
O
C02Et MeO
(2E,4E)ふethoxycarbonylふ (4‑methoxyphenyl)ωN醐(p醐toluenesulfonyl)‑2,
4・pentadinenamide(6d). To a solution of N・sulfonylamide 4 (200 mg, 0.472 mmol) in Dioxane (2 mL) were added vinyl stannane 6 (260 mg, 0.614 mmol) in Dioxane (3 mL), dichloro bis(triphenylphosphine)palladium(II) (33 mg, 0.047 mmol) and copper iodide(I) (108 mg, 0.567 mmol) at room temperature. After the mixture was stirred at 80 oc for 1 h, cooled to room temperature, filtered and concentrated in vacuo to give the crude products. Column chromatography on silica gel (from 9.0% to 25% ethyl acetate in Hexane) gave N‑sulfonyl dienamide 6d (132 mg, 65%) as yellow amorphous solid: IR (KBr disk, cmぺ)3246,2982,2922,1719ラ1578ラ1510,1439, 1259, 1146,974; lH NMR (400 MHz, CDCh) o 8.13‑7.94 (br s, lH), 7.98 (d, 2H, J= 8.4 Hz), 7.89 (d, lH, J= 16.4 Hz), 7.44 (d, 2H, J= 8.8 Hz), 7.35 (d, 2H, J= 8.4 Hz), 7.23 (d, lH, J= 16.4 Hz), 6.87 (d, 2H, J= 8.8 Hz), 6.06 (s, lH), 4.33 (q, 2H, J = 6.8 Hz), 3.83 (s,3H), 2.44 (s, 3H), 1.37 (t, 3H, J = 7.2 Hz);
J3C NMR (100 MHz, CDCh) o 166.8, 162.7, 161.1, 146.5, 145.4, 141.0, 135.8, 129.9, 129.7, 129.1, 128.6, 118.5, 1144, .62.2, 55.5, 21.9, 14.3; ESI HRMS m/:: calcd for C22H23NI06S1 (M‑H)¥428.1168, found 428.1159.
O γs 、 N~
実 験 項 第 6章 opyridin‑2(3H)‑one (6p). A solution of dienamide 6d (50 mg, 0.12 mmol) in 0・xylene(2mL) was stirred for 2.5 h at 130 oC. The resulting mixture was cooled to room temperature, concentrated in vαcuo to give the crude products. Column chromatography on silica gel (企om9.0% to 50% ethyl acetate in Hexane) gave N‑sulfonyl lactam 6p (38 mg, 76%) as yellow amorphous solid: IR (Neat, cm‑1) 2982, 2840,1713, 1608,1512,1360,1170,
1084, 912, 731; lH NMR (400 MHz, CDCh) o 7.39 (d, 2H, J口 8.4Hz), 7.16‑7.08(m, 4H), 7.01 (dd, lH, J= 5.6, 2.4 Hz), 6.89・6.84(m, 2H), 6.12 (dt,
lH,J出 5.2,2.8Hz), 4.26‑4.15 (m, 2H), 3.83 (s, 3H), 3.54 (dd, lH, J= 22, .4 2.0 Hz), 3.33 (dt, lH, J = 22, .42.8 Hz), 2.36 (s, 3H), 1.27 (t, 3H, J = 7.2 Hz); 13C NMR (100 MHz, CDCh)δ166.9, 164, .4160.0, 144.8, 135, .4135.0,
129.8, 129.2, 128.8, 128.8, 123, .3114.5, 61.3, 61.1, 554, .334, .21.6, 14.1; ESI HRMS m/z ca1cd for C22H23NI06S1 (M十Nat,452.1144, found 452.1144.
O
C02Et HO
(2E,4E)ふethoxycarbonylふ(4圃hydroxymethylphenyl)幽Nヤ蝿toluenesulfo nyl)‑2,4‑pentadinenamide (7d). To a solution of N‑sulfonyl amide 4 (66 mg, 0.16 mmol) in dioxane (2 mL) were added vinyl stannane 7 (86 mg, 0.203mmol) in dioxane (1 mL), dichloro bis(triphenylphosphine)palladium(II) (11 mg, 0.016 mmol) and copper iodide(I) (36 mg, 0.19 mmol)at room temperature. After the mixture was stirred at 80 oC for 1 h, cooled to room temperature, filtered and concentrated in vαcuo to give the crude products. Column chromatography on silica gel (from 9.0% to 50% ethyl acetate in Hexane) gave N‑sulfonyl dienamide 7d (72 mg, quant) as yellow amorphous solid: IR (Neat, cmぺ) 3502,3230,2923,2853, 1698, 1597, 1464, 1256, 1170, 1086, 1016,874; lH NMR (400 MHz, CDCh)δ8.77圃8.36(br s, lH), 8.03‑7.91 (m, 3H), 7.47 (d, 2H,J= 8.4 Hz), 7.37‑7.31 (m, 4H), 7.26 (d, lH, J= 16.4 Hz), 6.18 (s, lH), 4.71 (s, 2Hふ4.33(q, 2H, 7.2 Hz), 2.43 (s, 3H), 1.36 (t, 3H, J= 7.2 Hz); 13C NMR (100 MHz, CDCb)δ165ム162.1,145.6, 145.3, 142.3, 140.7, 135 .4, 129.7, 128, .4128.1, 127.2, 120.1,64.9,62.1,29.7,21.7, 141, ; . ESI百RMS m/z ca1cd for C22H23NI06S1 (M十Nat,452.1144, found 452.1155.
O Ts 、 N~
r、~\C02Et
ト10,ノ,~
4・ethoxycarbonyl‑6‑(4酬hydroxymethylphenyl)‑1胴(p‑toluenesulfonyl)‑1,6・
dihydropyridhト2(3Hトone(7p). A solution of dienamide 7d (31 mg, 0.070 mmol) in かxylene(2mL) was stirred for 4 h at 130 o
c .
The resulting mixture was cooled to room temperature, concentrated in vacuo to give the crude products. Column chromatography on silica gel (from 9.0% to 50%ethyl acetate in Hexane) gave N幽sulfonyllactam7p (17 mg, 56%) as yellow amorphous solid: IR (KBr disk, cm‑1) 2984, 2926, 1740, 1721, 1406, 1169, 911, 816; lH NMR (400 MHz, CDCh)δ7.44 (d, 2H, J口 8.8Hz), 7.36 (d, 2H, J= 8.0 Hz), 7.22 (d, 2H, J= 8.0 Hz), 7.12 (d, 2H, J= 8.0 Hz), 7.02 (dd, lH, J= 5.2, 2.4 Hz), 6.17 (dt, lH, J= 5.6, 2.4 Hz), 4.73 (s, 2H), 4.24‑4.15 (m, 2H), 3.54 (dd, lH, J= 22.4,2.0 Hz), 3.34 (dt, lH, J= 224,.2.8 Hz), 2.36 (s, 3H), 1.27 (t, 3H, J= 7.2 Hz); 13C NMR (100 MHz, CDCh) o 166.9, 1643, . 145.0, 141.7, 137.3, 135.3, 134.7, 129.3, 128.9, 127.6, 127 4,.123.8, 64.7, 61.4, 33 4,.21.6, 14.1; ESI HRMS m/z ca1cd for CI6H17NI06S1 (M十Nat, 374.0674, found 374.0688.
O
C02Et O
H
in dioxane (2 mL), dichloro bis(triphenylphosphine)palladium(II) (17 mg, 0.0236 mmol) and copper iodide(I) (54 mg, 0.284 mmol) at room temperature. After the mixture was stirred at 80 oC for 1 h, cooled to room temperature, filtered and concentrated in vacuo to give the crude products. Column chromatography on silica gel (from 9.0% to 50% ethyl acetate in Hexane) gave N‑sulfonyl dienamide 8d (82 mg, 81%) as yellow amorphous solid: IR (KBr disk, cm勺3080,2868,1731, 1694, 1661, 1597, 1257, 1146, 1085,812; lH NMR (400 MHz, CDCh) o 10.00 (s, lH), 8.67‑8.53 (br s, lH), 8.09 (dd, lH, J= 16,.40.8 Hz), 7.99 (d, 2抗,J口 8.8Hz), 7.85 (d, 2H, J口 8.0 Hz), 7.63 (d, 2H, J= 8.0 Hz), 7.40‑7.43 (m, 3H), 6.34 (s, lH), 4.35 (q, 2H, J
= 6.8 Hz), 2.44 (s, 3H), 1.37 (t, 3H, J口 7.2Hz); 13C NMR (100 MHz, CDCh) o 165ム161.9,145.5, 142.0, 139.2, 136.5, 135 3,. 130.1, 129.8, 128.5, 128.2, 123.2, 122.3, 62 .2, 21.7, 14.1; ESI HRMS m/z ca1cd for C22H21NI06S1 (M十Nat,450.0987, found 450.1010.
O Ts、
N^ 、
r、~ヘC02Et
Oλ^~
ト4
4‑ethoxycarbonylる柵(4‑formylphenyl)幽1幽(p幽toluenesulfonyl)・1,6幽dihydro pyridin・2(3叫 one(8p). A solution of dienamide 8d (32 mg, 0.074 mmol) in かxylene(2mL) was stirred for 4 h at 130 oC. The resulting mixture was cooled to room temperature, concentrated in vacuo to give the crude products. Column chromatography on silica gel (from 9.0% to 50% ethyl acetate in Hexane) gave N幽sulfonyllactam 8p (29 mg, 76%) as yellow amorphous solid: IR (KBr disk, cm‑1) 2982, 1710, 1686, 1354, 1261, 1163, 784; lH NMR (400 MHz, CDCh) o 10.04 (s, lH), 7.89 (d, 2H, J= 8.4 Hz), 7.49 (d, 2H, J = 8.8 Hz), 7.41 (d, 2H, J出 8.4Hz), 7.15 (d, 2H, J口 8.0Hz), 7.01 (dd, lH, J口 5.2,2.4Hz), 6.25 (dt, lH, J= 5.6, 2.4 Hz), 4.26欄4.16(m, 2H), 3.56 (dd, lH, J= 224,.2.4 Hz), 3.36 (dt, lH, J= 22 .4,2.8 Hz), 2.38 (s, 3H), 1.27 (t, 3H, J口 7.2Hz); 13C NMR (100 MHz, CDCh) o 166.6, 164 .1, 145 4,.144.5, 136.5, 135.0, 133.6, 130.5, 129 .3, 129.0, 127.7, 124.8, 61.6, 61.3, 33, .321.6, 14.1; ESI HRMS m/z ca1cd for C22H21NI06S1 (M十Nat, 450.0987, found 450.0976.
C02εt
(2E,4E)ふethoxycarbonyl‑5‑(0・tolyl)幽N‑(p幽toluenesulfonyl)・2,4幽pentadin enamide (9d). To a solution of N‑sulfonyl amide 4 (100 mg, 0.236 mmol) in Dioxane (1 mL) were added vinyl stannane 9 (163 mg, 0.307 mmol) in Dioxane (2 mL), dichloro bis(triphenylphosphine)palladium(II) (17 mg, 0.0236 mmol) and copper iodide(I) (54 mg, 0.284 mmol) at room temperature. After the mixture was stirred at 80 oC for 1 h, cooled to room temperature, filtered and concentrated in vacuo to give the crude products. Column chromatography on silica gel (合om9.0% to 25% ethyl acetate in Hexane) gave N幽sulfonyldienamide 9d (101 mg, 89%) as yellow amorphous solid: IR (KBr disk, cmぺ)3279, 3054, 1676, 1613, 1580, 1431, 1287, 1159, 1086,841,668; lH NMR (400 MHz, CDCh, 55 oc)δ8.57・8.14(br s, 1耳), 7.96 (d, 2H, J= 8.0 Hz), 7.79‑7.69 (m, lH), 7.60‑7.49 (m, 2H), 7.3 (d, 2H, J
= 8.4 Hz), 7.24‑7.11 (m, 2H), 6.28‑6.26 (m, lH), 4.34 (q, 2H, J = 7.2 Hz), 2.41 (s, 3H),2.32 (s, 3H), 1.36 (t, 3H, Jぉ 7.2Hz); 13C NMR (100 MHz, CDCh) o 166.7, 162.5, 145.8, 145 4,. 138.8, 137 .3, 135.7, 135.2, 130.7, 129.9, 129.5, 128.6, 126.5, 126, .4121.3, 120.9, 62,.321.9, 19.8, 14.3; ESI HRMS m/z ca1cd for C22H23NI0SS1 (M‑H)二412.1219,found 412.1202.
O
, TS'N~
ρ~大C0
2Et
<.;.、/ク'
(2E,4E)・3・ethoxycarbonyl‑5・(4幽for掴ylphenyl)訓"..(p圃toluenesulfonyl)‑2,4‑ 4‑ethoxycarbonylる‑(0倒tolyl)幽ト(p幽toluenesulfonyl)欄1,6‑dihydropyridin綱引 pentadinenamide (8d). To a solution of N‑sulfonyl amide 4 (100 mg, 0.236 3H)幽one(9p). A solution of dienamide 9d (50 mg, 0.12 mmol) in 0勾 lene mmol) in dioxane (2 mL) were added vinyl stannane 8 (124 mg, 0.307mmol) (2mL) was stirred for 4 h at 130 oC. The resulting mixture was cooled to
ー
125‑
実 験 項 第5章 room temperature, concentrated in vacuo to give the crude products. Column chromatography on silica gel (from 9.0% to 50% ethyl acetate in Hexane) gave N・sulfonyllactam 9p (48 mg, 96%) as yelIow amorphous soIid: IR (Neat, cmぺ)3230, 1680, 1582, 1437, 1289, 1194, 1086, 1021, 841, 668; lH NMR (400 MHz, CDCh) o 7.37 (d, 2H, J= 8.4 Hz), 7.2ふ7.19(m,3H), 7.09 (d, 2H, J = 8.0 Hz), 7.06‑7.00 (m, lH), 6.98‑6.92 (m,IH), 6.77 (d, lH, J =
8.0), 6.41 (dt, lH, J = 5.2, 2.8 Hz) 4.25‑4.13 (m, 2H), 3.56 (ddd, lH, J = 24.0,2.4,0.8 Hz), 3.36 (dt, lH, J= 22.4, 2.8 Hz), 2.54 (s, 3H), 2.36 (s, 3H), 1.27 (t, 3H, J= 6.8 Hz); 13C NMR (100 MHz, CDCh) o 167.3, 164.5, 144.9ヲ 136.4, 135.3, 135.0, 133.6, 131.2, 129.5, 128.7, 128.5, 126.8, 126.5, 123.2, 61.4,58.5, 33.3,21.6, 19.1, 14.1; ESI HRMS m/z calcd for C22H23NI05S1 (M+Nat, 436.1195, found 436.1173.
O
C02Et
(2E,4E)ふethoxycarbonylふ(2醐naphthyl)判醐(p欄toluenesulfonyl)‑2,4pent adinenamide (10d). To a solution of八T‑sulfonylamide 4 (88 mg, 0.21 mmol) in Dioxane (1 mL) were added vinyl stannane 10 (120 mg, 0.271 mmol) in Dioxane (1 mL), dichloro bis(triphen)匂hosphine)palladium(II) (15 mg, 0.021 mmol) and copper iodide(I) (48 mg, 0.25 mmol) at room temperature. After the mixture was stirred at 80 oC for 1 h, cooled to room temperature, filtered and concentrated in vacuo to give the crude products. Column chromatography on silica gel (from 9.0% to 25% ethyl acetate in Hexane) gave N‑sulfonyl dienamide 10d (45 mg, 48%) as yelIow amorphous soIid: IR (KBr disk, cm‑1) 3222, 2982, 1676, 1655, 1560, 1509, 1426, 1082, 843,771; lH NMR (400 MHz, CDCh) o 8.7ト8.52(br s, lH), 8.12 (d, lH, J
= 16.4 Hz), 7.99 (d, 2H, J口 8.2Hz), 7.87幽7.73(m, 4H), 7.68 (dd,IH, J口 8.8, 1.2 Hz), 7.52‑7.44 (m,2H), 7.43 (d, lH, J口 16.4Hz), 7.34 (d, 2H, J 8.0 Hz), 6.22 (s, lH), 4.37 (q, 2H, J = 7.2 Hz), 2.42 (s, 3H), 1.39 (t, 3H, J = 7.2 Hz); J3C NMR (100 MHz, CDCh)δ166.5, 162.5, 146.0, 145.5, 141.4, 135.7, 134.1, 133.8, 133.5, 129.9, 129.4, 128.6, 128.6, 127.9, 127.1, 127.0, 124.0, 120.7, 120.3, 62.3, 21.9, 14.3; ESI HRMS m/z calcd for C25H23NI05S1 (M+Nat, 472.1195, found 472.1207
O
C02Et
4‑ethoxycarbonyl個ふ(2・naphthyl)欄1幽(p醐toluenesulfonylト1,6幽dihydropyrid in‑2(3H)‑one (10p). A solution of dienamide 10d (50 mg, 0.11 mmol) in
0・珂Ilene(2mL) was stirred for 3 h at 130 oC. The resulting mixture was cooled to room temperature, concentrated in vacuo to give the crude products. Column chromatography on siIica gel (from 9.0% to 50% ethyl acetate in Hexane) gave N・.sulfonyllactam 10p (33 mg, 66%) as yellow amorphous solid: IR (Neatヲcm‑1)3058, 2926, 1701, 1597, 1509, 1356, 1173, 1084,906,814; lH NMR (400 MHz, CDCh) o 7.87‑7.82 (m, lH), 7.81‑7.75 (m, 2H), 7.71 (s, lH), 7.56欄7.50(m, 2H) 7.37 (d, 2H, J= 8.0 Hz), 7.19 (dd, lH, J= 8.4, 1.6 Hz), 7.09 (dd, lH, J= 6.0,2.8 Hz), 6.96 (d, lH, J= 8.4 Hz), 6.34 (dt, lH,J = 5.6, 2.0 Hz), 4.26‑4.13 (m, 2H), 3.63 (dd,IH, J = 22.8,2.0 Hz), 3.42 (dt, lH, J = 22.4, 2.8 Hz), 2.29 (s, 3H), 1.26 (t, 3H, J = 7.6 Hz);
J3C NMR (100 MHz, CDCh)δ167.1, 164.4, 144.9, 135.2, 135.0, 134.7, 133.2, 133.1, 129.3ヲ 128.8,127.7, 126.9, 126.8, 126.7, 124.1, 123.9, 61.9, 61.5, 33.5, 21.5, 14.1; ESI HRMS m/z calcd for C25H23NI05S1 (M+Nat, 472.1195, found 472.1189.
O TS,..A
日 │
;r(~
. . . .
C02町、S'
, ヤ ,
(17 mg, 0.0236 mmol) and copper iodide(I) (54 mg, 0.284 mmol) at room tempera加re.Af王erthe mixture was stirred at 80 oC for 1 h, cooled to room temperature, filtered and concentrated in vαcuo to give the crude products. Column chromatography on silica gel (企om9.0% to 25% ethyl acetate in Hexane) gave N引lifonyl dienamide 11d ( 80 mg, 83%) as yelIow amorphous solid: IR (KBr disk, cm‑1) 3266, 2978, 1716, 1690, 1609, 1431, 1246, 1084, 970, 774; lH NMR (400 MHz, CDCh) o 8.53‑8.43 (br s,IH), 7.97 (d, 2H, J口 8.8Hz), 7.82 (d, lH, J= 16.4 Hz), 7.38‑7.27 (m, 6H), 6.15 (s,IH), 4.32 (q, 2H, J口 6.8Hz), 2.44 (s, 3日), 1.35 (t, 3H, J口 6.8Hz); J3C NMR (100 MHz, CDCh) o 166.4, 162, .4145.8, 145.2ラ139.4,135.5, 1日34.7
l口29.7,128.4, 126.7, 126.5, 125.3, 1203, .119.8,62.1,21.7, 14.1; ESI HRMS m/z calcd for C19H19NI05S2 (M‑H)¥404.0626, found 404.0608.
O TS'N
ヘ ノ
円~\COヮEt
// ¥¥ vv~
‑S'
4‑ethoxycarbonyl必欄(3欄thienyl)‑l幽(p幽toluenesulfonyl)‑1 ,6‑dihydropyridin
‑2(3H)‑one (l1p). A solution of dienamide 11d (29 mg, 0.074 mmol) in
O幽xylene(2mL) was stirred for 4 h at 130 oC. The resulting mixture was cooled to room temperature, concentrated in vacuo to give the crude products. Column chromatography on silica gel (from 9.0% to 50% ethyl acetate in Hexane) gave N欄.sulfonyllactam 11p (20 mg, 69%) as yelIow amorphoussolid: IR(Neat, cm‑1) 3119,2990, 1719, 1678, 1539, 1393, 1285, 1051,873; lH NMR (400 MHz, CDCb) o 7.47 (d, 2H, J= 8.4 Hz), 7.33‑7.28 (m, 2H), 7.15 (d, 2H, J = 8.8 Hz), 7.09 (dd, lH, J = 5.6, 2.8 Hz), 6.86 (dd, lH, J= 5.2,1.6 Hz), 6.32(dt, lH, J口 6.0,1.6 Hz), 4.2ふ4.17(m, 2H), 3.55 (dd,IH, Jロ22.0,1.6 Hz), 3.27 (dt, lH, J= 22ム2.8Hz), 2.37 (s, 3H), 1.29 (t, 3H, J口 7.2Hz); J3C NMR (100 MHz, CDCh) o 166.8, 164, .4 144.9,
138.1, 1354, . 134.4, 129.1, 129.0, 127.3, 126.0, 124.7, 124.5, 61.5, 56.6, 33.4,21.6, 14.1; ESI HRMS m/z calcd for C19H19NI05S2 (M+Nat, 428.0602, found 428.0616.
O
C02Et
(2E,4め ふethoxycarbonyl幽5‑(N‑p‑toluenesul白nylふindolyl)‑Nヤ‑toluen esulfonyl)‑2,4‑pentadinenamide (12d). To a solution of N‑sulfonyl amide 4 (100 mg, 0.236 mmol) in Dioxane (1 mL) were added vinyl stannane 12 (180 mg, 0.307 mmol) in Dioxane (2 mL), dichloro bis(triphenylphosphine)palIadium(II) (17 mg, 0.0236 mmol) and copper iodide(I) (54 mg, 0.284 mmol) at room temperature. After the mixture was stirred at 80 oC for 1 h, cooled to room temperature, filtered and concentrated in vacuo to give the crude products. Column chromatography on silica gel (合om9.0% to 25% ethyl acetate in Hexane) gave N幽sulfonyl dienamide 12d (119 mg, 85%) as yelIow amorphous solid: IR (KBr disk, cmぺ)3254, 3024, 1724, 1597ヲ1447,1375, 1217ラ1127,978, 754; lH NMR (400 MHz, CDCh)δ8.65‑8.36 (br s, lH), 8.10 (d, 2H, J口 16.8Hz), 8.02‑7.94 (m, 3H) 7.87‑7.81 (m,IH), 7.81・7.75(m, 3H), 7.40 (d, lH, J = 16.4 Hz), 7.38‑7.29 (m, 5H), 7.23 (d, 2H, J口 8.0Hz), 6.19 (s,IH), 4.35 (q, 2H,J口 6.8Hz), 2.41 (s, 3H), 2.34 (s, 3H), 1.38 (t, 3H, J
=
6.8 Hz); J3C NMR (100 MHz, CDCh) o 166 .3,162.4, 145.5, 145.3, 145ム135.5,135.4,134.7, 131.8, 130.0, 129.6, 128.4, 128.2, 127 .2,126.9, 125.3, 124.1, 120.8, 120.8, 120.1, 119.7, 113.6,67.0,62.1,21.6,21.5, 14.1; ESI HRMS m/z calcd for C3oH28N207S2 (M+Na)¥615.1236, found 615.1227.
O Ts 、 N~
ι/、十「〆ヘザク¥COっEt 1
1
~I 11 v v z
実 験 項 第5章 mg, 0.0506 mmol) in 0幽xylene(2mL) was stirred for 3 h at 130 oC. The resulting mixture was cooled to room temperature, concentrated in vacuo to give the crude products. Column chromatography on silica gel (from 9.0% to 50% ethyl acetate in Hexane) gave N‑sulfonyllactam 12p (23 mg, 74%) as yellow amorphous solid: IR (Neat, cm‑1) 2986, 2928, 1693, 1597, 1447,
1372, 1172, 1092,905, 814; lH NMR (400 MHz, CDCb) o 7.97 (d, 2H, J口
8.4 Hz), 7.82 (d, 2H, J口 8.8Hz), 7.64 (s, lH), 7.40 (d, 2H,J = 8.4 Hz), 7.34・7.27(m, 2H) 7.24 (d, 2H,J= 8.8 Hz), 7.20‑7.08 (m, 2H), 7.05 (dd, lH, J口 5.2,2.8 Hz), 6.88 (d, lH, J = 8.4担z),6.42 (dt, lH,J = 5ム2.4Hz), 4.25‑4.12 (m, 2H), 3.59 (dd,IH, J= 21.6, 2.0 Hz), 3.38 (dt, lH, J口 22.4,2.8 Hz), 2.31 (s, 3H), 2.28 (s, 3H), 1.26 (t, 3H, J= 7.2 Hz); 13C NMR (100 MHz, CDCb) o 166.8, 164.2, 145.3, 144.9, 135.1, 135.0, 134.8, 133.1, 130.1, 128.9, 128.8, 127.5, 127.1, 125.5, 125.2, 124.9, 123.7, 119.0, 118.9, 113.9, 61.5, 54.7, 33.4, 21.5, 14.1; ESI HRMS m/z calcd for C3oH28N207S2 (M十Na)¥615.1236,found 615.1208
O Ts...A 1
.. ¥' i‑1
0""‑¥.../¥.../ミヤ/¥C02Et
(2E,4E)ふethoxycarbonylみ,らethylenedioxy‑N欄(p帽toluenesulfonyl)‑2,
ι m
onadinenamide (13d). To a solution of N刷sulfonylamide 4 (300 mg, 0.708 mmol) indioxane (2 mL) were added vinyl stannane 13 (397 mg, 0.921 mmol) in dioxane (2 mL), dichloro bis(triphenylphosphine)palladium(II) (50 mg, 0.0709 mmol) and copper iodide(I) (162 mg, 0.851 mmol)at room temperature. A食erthe mixture was stirred at 80 oC for 1 h, cooled to room temperature, filtered and concentrated in vacuo to give the crude products. Column chromatography on silica gel (from 9.0% to 50% ethyl acetate in Hexane) gave mixture of N‑sulfonyl dienamide 13d (172 mg, 55%, E : Z = 2 1) as yellow amorphous solid. HPLC (Develosil CN幽UG幽5 10/250 column (NOMURA CHEMICAL), (hexane/ethyl acetate)+TFA (5/1)十0.1%,f10w = 3.0 mLlmin. Retention times: 26.7 min) gave dienamide 1i as yellow amorphous solid: IR (KBr disk, cmぺ)3228, 2881, 1723, 1698, 1439, 1085,851; lH NMR (400 MHz, CDCb)δ8.78‑8.46 (br s, lH), 7.95 (d, 2H, J= 8.7 Hz),ブ.34(d, 2H, J= 8.7 Hz), 7.13 (d, lH, J= 15.1 Hz), 6.38 (dt, lH, J= 15.1, 7.3 Hz), 6.07 (s, lH), 4.84 (t, lH, J= 4.6 Hz), 4.26 (q, 2H, J=
6.9 Hz), 3.99‑3.79 (m, 4H), 2.44 (s, 3H), 2.23‑2.18 (m, 2H), 1.70‑1.60 (m, 2H), 1.59‑1.48 (m, 2H), 1.30 (t, 3H, J口 6.9Hz); 13C NMR (100 MHz, CDCb) o 166.4, 162.1, 145.6, 145.2, 144.9, 135.5, 129.7, 128.4, 126.4, 119, .4104.2, 64.8, 61.9, 33.6, 33.3, 23.0, 21.7, 14.1; ESI HRMS m/z calcd for C21H27NI07S1 (M十Nat,460.1406, found 460.1410.
O
;‑0 Ts 、 N~
O ¥ / ¥ / ¥グ¥CO
2日
4‑ethoxycarbonyl‑6‑
べ 。
1,3‑dioxolan‑2・yl)propyl)‑1同(p酬toluenesulfonyl)幽l,6‑dihydropyridin‑2(3Hトone(13p). A solution of dienamide 13d (30.7 mg, 0.070 mmol) in o‑xylene (2 mL) was stirred for 4 h at 130 oC. The resulting mixture was cooled to room temperature, concentrated in v,αcuo to give the crude products. Column chromatography on silica gel (会om25% to 50%
ethyl acetate in Hexane) gave mixture of N‑sulfonyl lactam 13p (10.2 mg, 33%) as yellow amorphous solid: IR (Neat, cm‑1) 3369, 3267, 2954, 2925, 2878,1700,1596,1460,1351, 1169, 1086, 1020,897.1,814; lH NMR (400 MHz, CDCb) o 7.90 (d, 2H, J= 8.4 Hz), 7.31 (d, 2H, Jロ8.0Hz), 7.06 (dd,
lH,J= 5ム2.8Hz), 5.26δ.16 (m, lH), 4.83 (t, lH, J= 4.8 Hz), 4.22 (q, 2H, J= 6.8 Hz), 3.96・3.90(m, 2H), 3.90‑3.80 (m, 2H), 3.36 (dd,IH, J口 22.0,1.2
註z),3.15 (dt, lH, J口 21ム2.8Hz), 2.43 (s, 3H), 2.0ふ1.96(m, 2H), 1.74‑1.65 (m, 2H), 1.5ト1.39(m, 2H), 1.30 (t, 3H, J= 7.2 Hz) 1.3ふ1.21(m, 9H), 0.93‑0.83 (m, 3H); 13C NMR (100 MHz, CDCh)δ167.5, 164.3, 145.2, 136.0, 135.6, 129, .4 129.2, 126.5, 104.0, 65.0, 61.5, 57.9, 364, .33.6, 33.5, 21.8, 18.9, 14.2; ESI HRMS m/z calcd for C21H27NI07S1 (M+Nat, 460.1406, found 460.1400.
O Ts...A
MeO、~Jl¥ J
、 . /
'C02Et(2E,4E)幽みethoxycarbonyl‑ふmethoxy‑N圃(p‑toluenesulfonyl)‑2,4圃hexadin enamide (14d). To a solution of N‑sulfonyl amide 4 (100 mg, 0.236 mmol) in Dioxane (l mL) were added vinyl stannane 14 (111 mg, 0.307 mmol) in Dioxane (2 mL), dichloro bis(triphenylphosphine)palladium(II) (17 mg, 0.0236 mmol) and copper iodide(I) (54 mg, 0.284 mmol) at room tempera同re.After the mixture was stirred at 80 oC for 1 h, cooled to room temperature, filtered and concentrated in vαcuo to give the crude products. Column chromatography on silica gel (from 9.0% to 25% ethyl acetate in Hexane) gave N‑sulfonyl dienamide 14d (44 mg, 57%) as yellow amorphous solid: IR (KBr disk, cm‑1) 3245, 2926, 2826, 1727, 1634, 1447, 1346, 1121, 851,666; lH NMR (400 MHz, CDC13) o 7.96 (d, 2H, J口 8.8Hz), 7.35 (d, 2H,J口 8.0Hz), 7.23 (d, lH, J = 14.0 Hz), 6.48 (dt, lH, J = 16.0,6.0 Hz), 6.24 (s,IH), 4.28 (q, 2H,J= 7.2 Hz), 4.03 (dd, 2H, J= 5.6,1.6 Hz), 3.34 (s, 3H), 2.45 (s, 3H), 1.32 (t, 3H, J = 7.6 Hz); 13C NMR (100 MHz, CDCh) o 166.2, 162, .3 145.1, 144.0, 139.2, 135.5,129.6, 128, .4 123.0, 122.2, 72.7, 62.1, 58ム21ム14.0;ESI HRMS m/z calcd for C17H21NI06S1 (M+Nat, 390.0987, found 390.0976.
O Ts、N,)久、1
MeO、 ノ¥ d久
¥ J、 叫f 、C0
2Et
4帽・ethoxycarbonyl幽ふmethoxymethyl‑l・・(p‑toluenesulfonyl)‑1,6帽dihydropy ridin‑2(3H)幽one(14p). A solution of dienamide 14d (70 mg, 0.19 mmol) in o‑xylene (2mL) was stirred for 4 h at 130 oC. The resulting mixture was cooled to room temperature, concentrated in vacuo to give the crude products. Column chromatography on silica gel (from 9.0% to 50% ethyl acetate in Hexane) gave N欄sulfonyllactam 14p (11 mg, 16%) as yellow amorphous solid: IR (Neat, cmぺ)3023, 2930, 1713, 1597, 1356, 1258, 1086, 901,814; lH NMR (400 MHz, CDCb) o 7.91 (d, 2H, J = 8.4 Hz), 7.31 (d, 2H,J口 8.0Hz), 7.03‑6.97 (m, lH), 5.27・5.21(m, lH), 4.21 (q, 2H, J口 7.6 Hz), 3.82 (dd,IH, J= 8.8, 4.4 Hz), 3.68 (dd, lH, J= 10.4,2.0 Hz), 3.31 (s, 3H), 3.29‑3.25 (m, 2H), 2.43 (s, 3H), 1.30 (t, 3H, J= 6.8 Hz); 13C NMR (100 MHz, CDCb) o 168.2, 164.3, 145.0, 135.9, 132.9, 1293, .129.0, 128.5, 74.0, 61.3, 59 .4,57.4, 34.2, 21.7, 14.1; ESI HRMS m/z calcd for C17H21NI06S1 (M+Na)¥390.0987, found 390.0991.
O Ts、Nノ丸、1
TBSO、~Jl
¥ / 、 、
/¥C02Et(2E,4E)ふet曲ho阻xy戸ca町rb加o狙町yl‑必6ふ6欄(仰(οt欄加t勿yl姐di加me叫th刊y凶Iss討i叫ilo似xy抄)幽N帽(伊p‑川嗣寸t凶0叫lue汲肘esu凶i治f白on y刊1)幽ト‑2,4‑ゐ
mg, 0.236 mmol) in Dioxane ( 1 mL) were added vinyl stannane 15 (142 mg, 0.307 mmol) in Dioxane (2 mL), dichloro bis(triphenylphosphine )pall
O Ts、. A HO、¥ / 、 / 、
J LJ L
C02Et(2E,4E)‑3‑ethoxycarbonyl柵ふhydroxy‑N剛(p欄toluenesulfonylト2,4・hexadine namide (16d). To a solution of N‑sulfonyl amide 4 (100 mg, 0.236 mmol) in dioxane (2 mL) were added vinyl stannane 16 (106 mg, 0.307mmol) in dioxane (2 mL), dichloro bis(triphenylphosphine)palladium(II) (16 mg,
幽
127‑
実 験 項 第5章 0.024 mmol) and copper iodide(I) (54 mg, 0.283 mmol)at room temperature. After the mixture was stirred at 80 oc for 1 h, cooled to room temperature, filtered and concentrated in vacuo to give the crude products. Column chromatography on silica gel (企om9.0% to 50% ethyl acetate in Hexane) gaveN幽sulfonyldienamide 16d (63 mg, 75%) as yellow amorphous solid: IR (KBr disk, cm,l) 3482, 2961, 2926ヲ2855,1724, 1700, 1596, 1455, 1261, 1154,1087,1019; IH NMR (400 MHz, CDCh) o 7.95 (d, 2H, J= 8.0 Hz), 7.34 (d, 2H, J= 8.0 Hz), 7.24 (d, lH, J= 17.2 Hz), 6.54 (dt, lH, J= 16.0,
5.2 Hz), 6.29 (s, lH), 4.32‑4.21 (m, 4H), 2.44 (s, 3H), 1.31 (t, 3H, J = 6.8 Hz); 13C NMR (100 MHz, CDCh)δ166.3, 162.7, 145.2, 143.7, 141.7, 135.4, 129.6, 128.4, 122.3, 121.3,63.1,62.1,21.6, 14.0; ESI HRMS m/z calcd for CI6HI9NI06S1 (M・H)¥352.0855,found 352.0844.
O Ts、邑ノ4¥
ぺ
H
o ~
子一ノ C02Et H
みethoxycarbonyl欄ふoxo‑N‑伊‑toluenesulfonyl)‑2‑hexen‑4‑lactam(17e). (Method A: Stille coupling). To a solution of N‑sulfonyl amide 4 (50 mg, 0.118 mmol) in Dioxane (1 mL) were added vinyl stannane 17 (53 mg, 0.15 mmol) in Dioxane (2 mL)ヲdichlorobis(triphenylphosphine )palladium(II) (8 mg, 0.01 mmol) and copper iodide(I) (27 mg, 0.14 mmol) at room temperature. After the mixture was stirred at 80 oC for 1 h, cooled to room temperature, filtered and concentrated in vacuo to give the crude products. Column chromatography on silica gel (9.0% ethyl acetate in Hexane) gave ふmemberedring N・・sulfonyllactam15e (24 mg, 60%) as yellow oil.
(Method B: Mn Oxidition). To a solution of alcohol 16d (28 mg, 0.079 mmol) in dichloromethane (2 ml) was added Mn02 (336 mg, 3.86 mmol) at room temperature. After the mixture was stirred for 30 min at this temperature, filtered and concentrated in vacuo to give the aldehyde 17 e (16 mg, 58%) as yellow oil: IR (五Brdisk, cm,l) 2984, 2926, 1740, 1721, 1406, 1169,911,816; IH NMR (400 MHz, CDCh) o 9.67‑9.63 (br s, lH), 7.94 (dヲ
2H, J= 8.4 Hz), 7.35 (d, 2H, J= 8.8 Hz), 6.65 (d, lH, J= 2.0 Hz), 5.33働5.28 (m, 2H), 4.37‑4.26 (m, 2H), 3.41 (ddd,IH, J= 17.6,4.8,1.6 Hz), 3.27 (ddd, lH, J= 1ブ.6,4札1.6Hz), 2.44 (s, 3H), 1.33 (t, 3H, J = 7.2 Hz); 13C NMR (100 MHz, CDCh) o 197.1, 166.8, 161.1, 151.1, 145.8, 134.9, 131.5, 129.9, 128.2, 62.4, 58.2, 44.0, 21.7, 14.0; ESI HRMS m/z calcd for CI6H17NI06S1 (M+Nat, 374.0674, found 374.0688
s n
BLJ3Me
(E)‑4‑(tributylstannyl)but‑3・ 印 刷2‑one(18). To a solution of alcohol 20 (100 mg, 0.276 mmol) in dichloromethane (3.0 ml) was added Mn02 (1.20 g, 13.8 mmol) at room temperature. After the mixture was stirred for 30 min at this temperature, filtered and concentrated in vαcuo to give the ketone 18 (64 mg, 65%) as colorless oi l.
O Ts、..ノ久¥
' ' ¥ / /
o …‑4子‑‑‑1 C02Et Me
みethoxycarbonyl幽ふoxo幽N幽(p幽toluenesul白nyl)‑2ゐepten‑4‑lactam(18e)
,
(Method A: Stille coupling). To a solution of N‑sulfonyl amide 4 (58 mg, 0.14 mmol) in Dioxane (1 mL) were added vinyl stannane 18 (64 mg, 0.18 mmol) in Dioxane (2 mL), dichloro bis(triphenylphosphine)palladium(II) (10 mg, 0.014 mmol) and copper iodide(I) (31 mg, 0.16 mmol) at room temperature. Af王erthe mixture was stirred at 80 oC for 1 h, cooled to room temperature, filtered and concentrated in vacuo to give the crude products. Column chromatography on silica gel (from 9.0% to 25% ethyl acetate in Hexane) gave 5・mamberedN‑sulfonyllactam 18e (49 mg, 76%) as yellow oil.
ethyl acetate. The organic layers were combined, washed with brine, dried over MgS04, filtered and concentrated in vacuo to give the crude products. Column chromatography on silica gel (17% ethyl acetate in Hexane) gave ketone 18e (44 mg, 96%) as yellow oil: IR (KBr disk, cm'l) 3109, 2984, 2927,1727,1648,1597,1446,1374,1307,1224, 1044, 1015;IHNMR(400 MHz, CDCh) o 7.93 (d, 2H, J= 8.4 Hz)ヲ7.34(d, 2H, J 8.8 Hz), 6.58 (d, lH, J= 2.0 Hz), 5.26‑5.21 (m, lH), 4.35‑4.20 (m, 2H), 3.43 (dd,IH, J= 17.6,
4.4 Hz), 3.32 (dd, lH, J = 17.8,4.0 Hz), 2.43 (s, 3H), 2.15 (s, 3H), 1.31 (t, 3H, J= 7.2 Hz); 13C NMR (100 MHz, CDCh)δ203.7, 167.2, 161.3, 151.8, 145.6, 135.0, 130.8, 129.8, 128.1, 62.2, 59.1, 43.7, 30.5, 21.7, 13.9; ESI HRMS m/z calcd for C17HI9NI06S1 (M+Nat, 388.0831, found 388.0843.
O
' i ' ヘ ノ
nBu3 OMe(E)幽methyI3‑(tributylstannyl)acrylate(19). To a methyl propiolate (1 mL, 12.0 mmol) were added tributyltin hydride (3.6 mL, 13.2 mmol) and AIBN (59 mg, 0.36 mmol) at room temperature. After the mixture was stirred for 4 h at 100 oC , cooled to room temperature and concentrated in vacuo to give crude products. Column chromatography on alumina (Hexane) gave vinyl stannane 19 (1.62 g, 45%) as colorless oil: IR (Neat, cmηザ1ずず勺,
2852, 1727, 1463, 1261, 1209, 1156ラ997,842, 692; IH NMR (400 MHz, CDCh) o 7.76 (d, lH, J口19.6Hz), 6.31 (d, lH, J= 19.6 Hz), 3.75 (s, 3H), 1.62‑1.38 (m, 6H), 1.3ふ1.23(m, 6H), 1.00‑0.94 (m, 6Hふ0.94‑0.80(m, 9H); 13C NMR (100 MHz, CDCh) o 165.3, 152.9, 135.9, 51.6, 28.9, 27.2, 13.6,9.6.
o 9
Ts,..A Ts,.,ノ人¥
0"
γ
11̲ ̲ ̲ q
,' ) ‑ ! Z
、 / 、C02Et
ト
J 'C02Et OMe MeOみethoxycarbonyl‑5欄methoxycarbonyl欄N・.(pぺoluenesulfonyl)・2,4・pentadi nenamide (19d) and みethoxycarbonyl‑5‑methoxycarbonyl‑N欄 (p圃toluenesulfonyl)‑2幽penten‑4幽lactam(1ge). To a solution of N‑sulfonyl amide 4 (100 mg, 0.236 mmol) in toluene (1 mL) were added vinyl stannane 19 (115 mg, 0.307mmol) in toluene (2 mL), dichloro bis(triphenylphosphine )palladium(II) (17 mg, 0.0236 mmol) and copper iodide(I) (54 mg, 0.284 mmol) at room tempera加re.After the mixture was stirred at 80 oC for 1 h, cooled to room tempera加re,filtered and concentrated in vacuo to give the crude products. Column chromatography on siIica geI (from 9.0% to 16% ethyI acetate in Hexane) gave N‑sulfonyI dienamide 19d (46 mg, 51%) as yellow amorphous soIid and ふmembered ring N‑sulfonyI Iactam 1ge (13 mg, 14%) as yellow amorphous soIid; 19d: IR (KBr disk, cm'l) 3237, 2954, 1γ12, 1685, 1437, 1086,851; IH NMR (400 MHz, CDCh) o 8.08 (d, lH, J= 16.0 Hz), 7.95 (d, 2H, J= 8.3 Hz), 7.40 (d, 2H, J= 8.3 Hz), 6.69 (s, lH), 6.55 (d, lH, J口16.0Hz), 4.29 (q, 2H, J= 7.3 Hz), 3.76 (s, 3H), 2.44 (s, 3H), 1.33 (t, 3H, J= 7.3 Hz); 13C NMR (100 MHz, CDCI3) o 166.5, 164.9, 161.5, 145.5, 140.9, 135.2, 134.3, 129.7, 128.8, 128.5, 126.4,62.5,52.0,21.7, 14.0; ESI HRMS m/z calcd for C17HI9NI07S1 (M+H)¥404.0780, found 404.0785. 1ge: IR (Neat, cm,l) 3106, 2983, 2924, 2852, 1735, 1597, 1438, 1367, 1226, 1169, 1088, 1010,889,845; IH NMR (400 MHz, CDCI3) o 7.98 (d, 2H, J口8.8Hz), 7.34 (d, 2H, J口8.0Hz), 6.64 (d, lH, J口1.6Hz), 5.22 (ddd, lH, J= 4.8,3.2, 1.6 Hz), 4.39‑4.26 (m, 2H), 3.49 (s, 3H), 3.49 (dd,1H, J= 16.8,4.8 Hz), 3.28 (dd, lH, J= 16.4,3.2 Hz), 2.44 (s, 3H), 2.15 (s, 3H), 1.34 (t, 3H, J = 7.2 Hz); 13C NMR (100 MHz, CDCI3) o 169.3, 167.2, 161.3, 151.4, 145.5, 135.3, 131.5, 129.7, 128.4,62.4, 59.8,51.9,35.5,21.8, 14.1; ESI HRお1Sm/z calcd for CI7HI9NI07S1 (M+Nat, 404.0780, found 404.0767.
O Ts、NA
、
H O γ 入 、
C0Et実 験 項 第5章 (10 mL) were added vinyl stannane 20 (931 mg, 2.57 mmol) in Dioxane (10 mL), dichloro bis(triphenylphosphine)palladium(II) (139 mg, 0.198 mmol) and copper iodide(I) (453 mg, 2.38 mmol) at room temperature. A食erthe mixture was stirred at 80 oc for 1 h, cooled to room tempera加re,filtered and concentrated in vacuo to give the crude products. Column chromatography on silica gel (from 9.0% to 50% ethyl acetate in Hexane) gave 1¥んsulfonyl dienamide 20d (471 mg, 65%) as yellow amorphous solid: IR (KBr disk, cmぺ)3483, 3236, 2977, 2928, 1724, 1701, 1596, 1445, 1344, 1256, 1158, 1086,978; lH NMR (400 MHz, CDCh)δ7.96 (d, 2H, J口 8.8Hz), 7.35 (d, 2H, J= 8.0 Hz), 7.20 (dt, lH, J出 16.0,1.2 Hz), 6.49欄6.39(m, lH), 6.26 (s, lH), 4.28 (q, 2H, J出 7.2Hz), 2.45 (s, 3H), 1.34・1.22(m, 6Hよ13CNMR (100 MHz, CDCh) o 166.2, 162.8, 145.8, 144.9, 143.8, 1354, .129.4, 128.2, 122.4, 120,6.4 8, .461.9, 31.4, 22.4, 21.5, 13.9, 13.8; ESI HR長1Sm/z calcd for C17H21NI06S1 (M+Nat, 390.0987, found 390.0999.
。ハ~\
N‑benzyl amide (26). To a solution of carboxylic acid 25 (1.00 g, 3.70 mmol) in CH2Ch (20 mL) were added N‑methylmorphorine (0.61 mL, 5.6 mmol) and isobutyl chloroformate (0.72 mL, 5.6 mmol) at 0 oC. After the mixture was stirred for 10 min at this temperature, ber向rlamine(0.81 mL, 7.4 mmol) was added at this temperature. After the mixture was stirred at this temperature for 1 h, a saturated aqueous N~Cl solution was added and the resulting mixture was extracted with ethyl acetate. The organic layers were combined, washed with brine, dried over MgS04, filtered, and concentrated in vacuo to give the crude products. Column chromatography on silica gel (from 6.6% to 9.0% ethyl acetate in Hexane) gave N‑benzyl amide 26 (1.19 g, 90%) as white solid: IR (KBr disk, cm‑1) 3245, 1734, 1701,
1685, 1608, 1517, 1497, 1453, 1228, 1036; lH NMR (400 MHz, CDCh) o 7.65 (s, lH), 7.42‑7.27 (m, 5H), 6.2ト6.02(br s, lH), 4.57 (d, 2H, J口 5.6 Hz), 4.31 (q, 2H, J= 7.2 Hz), 1.33 (t, 3H, J= 7.2 Hz); 13C NMR (100 MHz, CDCh) o 164.1, 162.8, 140.8, 137.2, 128.9, 128.2, 127.9, 98.4, 63.7, 43.9, 14.2; ESI HRMS m/z calcd for C13H14I1Nl03 (M幽H)¥357.9940,found 357.9942.
。 ; ; : 心
(2E,4E)‑N‑benzylふethoxycarbonylふphenyl‑2,4幽pentadinenamide(21). To a solution of N‑benzyl amide 26 (200 mg, 0.557 mmol) in Dioxane (3 mL) were added vinyl stannane 5 (285 mg, 0.724 mmol) in Dioxane (3 mL), dichloro bis(triphenylphosphine)palladium(II) (39 mg, 0.056 mmol) and copper iodide(I) (127 mg, 0.668 mmol) at room tempera加re.After the mixture was stirred at 80 oC for 1 h, cooled to room tempera加re,filtered and concentrated in vacuo to give the crude products. Column chromatography on silica gel (合om9.0% to 14% ethyl acetate in Hexane) gave N剛benzyl dienamide 21 (120 mg, 64%) as white solid: IR (KBr disk, cm‑1) 3446, 3065, 2883,1726,1670,1617, 1590, 1496, 1286, 1252, 1210, 1117, 1029,974; lH NMR (400 MHz, CDCh) o 8.18 (d, lH, J= 15ム1.2Hz), 7.52‑7.46 (m, 2狂), 7.37‑7.23 (m, 9H), 6.38 (s, lH), 6.05δ.96 (br s, lH), 4.55 (d, 2H, J = 6.0 Hz), 4.33 (q, 2H, J= 6.8 Hz), 1.37 (t, 3H, J出 6.8Hz); 13C NMR (100 MHz, CDCh)δ166.8, 165.2, 140.6, 138.0, 137.8, 136.8, 128.9, 128.7, 128.0, 127.8, 127.5, 125.6, 120.8, 61.7, 43.8, 14.3; ESI HRMS m/z calcd for C21H21Nl03 (M刷H)¥334.1443,found 334.1451.
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o
0万 人 。 へ
Ph/、、y'¥C02Et
carboxylic anhydride (28). To a solution of carboxylic acid 27 (50 mg, 0.20 mmol) in THF (2 mL) was added N欄methylmorphorine(0.03 mL, 0.30 mmol) at 0 oC. After the mixture was stirred for 10 min at this temperature, isobutyl chloroformate (0.04 mL, 0.30 mmol) was added. After the mixture was stirred at this tempera加refor 30 min, a saturated aqueous NH4Cl
solution was added and the resulting mixture was extracted with ethyl acetate. The organic layers were combined, washed with brine, dried over MgS04, filtered, and concentrated in vαcuo to give the crude products. Column chromatography on silica gel (from 6.6% to 9.0% ethyl acetate in Hexane) gave mixed anhydride 28 (62 mg, 89%) as white solid.
。 ; 見
CO?EtN欄Bz‑dienamide(22). To a suspension of sodium hydride (10 mg, 0.27 mmol, 60% in oil) in THF (2 mL) was added benzoylamide (24 mg, 0.20 mmol) at 0 oC. After the mixture was stirred for 10 min. at this temperature, a solution ofthe produced mixed anhydride 28 afforded above (62 mg, 0.18 mmol) in THF (2 mL) was added. After the mixture was stirred for 15 min at this temperature, a saturated aqueous NH4Cl solution was added, and the resulting mixture was extracted with ethyl acetate. The organic layers were combined, washed with brine, dried over恥19S04,filtered and concentrated in vαcuo to give the crude products. Column chromatography on silica gel (企om9.0% to 14% ethyl acetate in Hexane) gave N同benzoyldienamide 22 (22 mg, 20%) as yellow solid: IR (KBr disk, cm‑1); 3273, 3064, 2982, 2935,
1726, 1712, 1663, 1601, 1582, 1465, 1367, 1237, 1124,972; lH NMR (400 MHz, CDCh) o 8.31 (s, lH), 8.4ト8.35(m, 2H), 8.33帽8.28(m, 2H), 7.97 (d,
lH,J口 16.8Hz), 7.51‑7.44 (m, 2H), 7.40幽7.28(m, 4H), 6.15 (s, 3H), 4.36 (q, 2H,J口 6.8Hz), 1.38 (t, 3H, J= 7.2 Hz); 13C NMR (100 MHz, CDCh) o
166.7, 162.3, 150.9, 146.9, 143.9, 142.1, 135.8, 1301, .128.9, 128.0, 1244, . 120.0, 119.5, 62.6, 14.2; ESI HRMS m/z calcd for C21H19Nl04 (M十Na)¥
372.1212, found 372.1198.
。 ; ! 心
Piperidinone (22p). A solution of N‑benzoyl dienamide 22 (26 mg, 0.074 mmol) in 0幽xylene(2 mL) was stirred for 4 h at 130 oC. The resulting mixture was cooled to room temperature, concentrated in vαcuo to give the crude products. Column chromatography on silica gel (企om9.0% to 50%
ethyl acetate in Hexane) gave mixture of N柵benzoyl lactam 22p and recovered 37 (23 mg, 45ぉ 61%,37= 27%) as yellow amorphous solid: IR (KBr disk, cmぺ)3034, 2929,1721,1708,1598,1456,1370,1264,1173, 893; lH NMR (400 MHz, CDCh) o 8.09 (d, 2H, J= 9.2 Hz), 7.57 (d, 2H, J
= 9.2 Hz), 7.45‑7.34(m,3H), 7.19 (d, 2H,J=6.8 Hz), 7.04 (dd, lH,J=5.6, 2.4 Hz), 6.15 (dt, lH, J = 5.2,2.8 Hz), 4.27‑4.17 (m, 2H), 3.68闘3.58(m, lH), 3.39 (dt, lH, J= 22.8, 2.8 Hz), 1.29 (t, 3H, J= 7.2 Hz); 13C NMR (100 MHz, CDCh) o 167.3, 164, .3 150.5, 143ム137.5,134, .3 130.8, 129.5, 129.5, 127.8, 123.7, 123.4, 62.2, 61.7, 33.5, 14.2; ESI HRMS m/z ca1cd for C2oH18N207S1 (M+Nat, 453.0732, found 453.0722.
dd 目 イ 江
N‑Ns‑amide (30). To a suspension of sodium hydride (105 mg, 2.63 mmol, 60% in oil) in THF (5 mL) was added p幽nitrobenzenesulfonamide (451 mg, 2.23 mmol) at 0 oC. After the mixture was stirred for 10 min. at this temperature, a solution of the mixed anhydride 29 (750 mg, 2.03 mmol) in THF (3 mL) was added. After the mixture was stirred for 2 h at room temperature, a saturated aqueous NaHC03 solution was added, and the resulting mixture was extracted with saturated aqueous NaHC03 solution. The aqueous layers were combined, and a 2 N HCl solution (50 mL) was added, and the resulting mixture was extracted with ethyl acetate. The organic layers were combined, washed with brine, dried over MgS04, filtered and concentrated in vαcuo to give N‑sulfonyl amide 30 (920 mg, quant.) as yellow solid: IR (KBr disk, cm‑1); 3213, 3105, 1717, 1688, 1622, 1529, 1437, 1315, 1126, 874; lH NMR (400 MHz, CDCh, MeOH), O 8.22 (d, 2H, J= 9.2 Hz), 8.17欄8.09(m, 2H), 7.50‑7.48 (m, lH), 4.17 (q, 2H, J口
7.2 Hz吋), 1.21 (仏t,3H, J = 7.
ユ
2Hz吟);13C NMR (100 MHZζ, CDClω3) o 163.2 l臼50.0,146.6, 141.2, 129.0, 123.8, 63ム31.5,22ム13.8;ESI HRMS m/z
開
129‑
実 験 項 第5章 caIcd for C12HIIIIN207SI (MH ,r452.9272, found 452.9253.
0¥ γ η 、,0守 fγ -....~r
)
1 1
l H
02N ' ¥ グ ロPh"
、
y 、C02EtN‑Ns・Dienamide(23). To a solution ofN幽sulfonylamide 30 (100 mg, 0.220 mmol) in Dioxane (1 mL) were added vinyl stannane 5 (112 mg, 0.286 mmol) in Dioxane (1 mL), dichloro bis(triphenylphosphine)palladium(II) (15 mg, 0.022 mmol) and copper iodide(I) (50 mg, 0.26 mmol) at room temperature. After the mixture was stirred at 80 oC for 1 h, cooled to room temperature, filtered and concentrated in vacuo to give the crude products. Column chromatography on silica gel (from 9.0% to 50% ethyl acetate in Hexane) gave N‑sulfonyl dienamide 23 (42 mg, 44%) as yellow solid: IR (KBr disk, cm‑I); 3238ヲ3106,2779,1728, 1696, 1609, 1583, 1535, 1348, 1313, 1254, 1184, 1084, 1015,972; IH NMR (400 MHz, CDCh) o 8.31 (s, lH), 8.4ト8.35(m, 2H), 8.33‑8.28 (m, 2H), 7.97 (d, lH, J = 16.8 Hz), 7.5ト7.44(m, 2H), 7.40・7.28(m, 4H), 6.15 (s, 3H), 4.36 (q, 2H, J= 6.8 Hz), 1.38 (t, 3H, J= 7.2 Hz); 13C NMR (100 MHz, CDCh) o 166.7, 162.3, 150.9, 146.9,143.9,142.1,135.8,130.1, 128.9, 128.0, 1244, . 120.0, 119.5,62.6, 14.2; ESI HRMS m/z caIcd for C2oHI8N207S1 (M凶H)¥429.0756,found 429.0773.
ぴ ち i
Piperidinone (23p). A solution of N‑sulfonyl dienamide 23 (65 mg, 0.151 mmol) in o‑xylene (2 mL) was stirred for 4 h at 130 oC. The resulting mixture was cooled to room temperature, concentrated in vαcuo to give the crude products. Column chromatography on silica gel (from 9.0% to 50%
ethyl acetate in註exane)gave N嗣sulfonyllactam 23p (38 mg, 58%) as yellow amorphous solid: IR (KBr disk, cmぺ)3109, 2880, 1724, 1684, 1536, 1379, 1314, 1250, 1181, 1047, 747; IH NMR (400 MHz, CDCh) o 8.09 (d, 2H, J= 9.2 Hz), 7.57 (d, 2H, J= 9.2 Hz), 7.45‑7.34 (m, 3H), 7.19 (d, 2H, J
= 6.8 Hz), 7.04 (dd, lH, J= 5.6, 2.4 Hz), 6.15 (dt, lH, J口 5,.22.8 Hz), 4.27‑4.17 (m, 2H), 3.68幽3.58(m, lH), 3.39 (dt, lH, J= 22.8, 2.8 Hz), l.29 (t, 3H, J= 7.2 Hz); 13C NMR (100 MHz, CDCh) o 167.3, 164.3, 150.5, 143.6, 137.5, 134.3, 130.8, 129.5, 129.5, 127.8, 123.7, 123.4,62.2, 6l.7, 33.5, 14.2; ESI HRMS m/z caIcd for C2oHI8N207S1 (M+Nat, 453.0732, found 453.0722.
d h
N‑Mes幽amide(31). To a suspension of sodium hydride (81 mg, 2.037 mmol, 60% in oil) in THF (7.0 mL) was added mesityl sulfonamide (343 mg, 1.724 mmol) at 0 oC. After the mixture was stirred for 20 min. at this temperature, a solution of the mixed anhydride 29 (580 mg, 1.567 mmol) in THF (1.0 mL) was added. After the mixture was stirred for 15 h at room temperature, a saturated aqueous NaHC03 solution was added, and the resulting mixture was extracted with saturated aqueous NaHC03 solution. The aqueous layers were combined, and a 2 N HCl solution was added, and the resulting mixture was extracted with ethyl acetate. The organic layers were combined, washed with brine, dried over MgS04, filtered and concentrated in vαcuo to give N幽sulfonylamide 31 (621 mg, 88%) as yellow solid: IR (neat, cm‑I) 3242.7,
1687.4, 1428.0, 1263.2, 1114.7, 837.0; lH NMR (400 MHz, CDC13)δ 8.97θ.12 (br s, lH), 7.69 (s, lH), 6.99 (s, 2H), 4.32 (q, 2H, J口 7.4Hz), 2.72 (s, 6H), 2.31 (s, 3H), 1.32 (t, 3H, J = 7.4 Hz); 13C N恥1R(100 MHz, CDCh) o
162.5, 144.2, 140.6, 137, .4 132.2, 132.0, 102 .4, 64l, . 22.9, 2l.l, 14.0 ; ESI‑HRMS mlz ca1cd for C15HI8NI05S1 (M+Nat 473.9848, found 473.9829.
4 : 也
N‑Mes‑Dienamide (24). To a solution of N‑sulfonyl amide 32 (320 mg, 0.709 mmol) in Dioxane (4.0 mL) were added vinyl stannane 5 (404 mg, 1.064 mmol) in Dioxane (1.0 mL), dichloro bis(triphenylphosphine)palladium(II) (50 mg, 0.071 mmol) and copper iodide(I) (162 mg, 0.851mmol) at room temperature. After the mixture was stirred at 80 oC for 1.5 h, cooled to room temperature, filtered and concentrated in vαcuo to give the crude products. Column chromatography on silica gel (合om9% to 67% ethyl acetate in Hexane) gave N‑sulfonyl dienamide 32 (254 mgヲ84%)as yellow solid: IR (neat, cmぺ)3237.9, 2981.4, 1672.0, 1428.0, 1120.4, 750.2; IH NMR (400 MHz, CDCh) o 9.02み.46(br s, lH), 7.91 (d, lH, J= 16.5 Hz), 7.4ト7.48(m, 2H), 7.27・7.36(m, 3H), 7.22 (d, lH, J = 16.5 Hz), 6.97 (s, 2H), 6.31 (s, lH), 4.34 (q, 2H, J = 7.4 Hz), 2.72 (s, 6H), 2.29 (s, 3H), 1.35 (t, 3H, J
=
7.4 Hz); 13C NMR (100 MHz, CDCh) o 166.6, 162.9, 145.0, 143.8, 140.55, 140.45, 136.1, 132, .3 132.l, 129 .4, 128.6, 127.8, 120.9, l20.3, 62.2, 22.8, 22.7, 21.1; ESI欄HRMSmlz caIcd for C23H25NI05S1 (M+Nat 450.1351, found 450.1357d E
Piperidinone (24p). A solution of N引llfonyldienamide 24 (42.1 mg, 0.098 mmol) in o‑xylene (l.0 mL) was stirred for 15 h at 130 oC. The resu1ting mixture was cooled to room temperature, concentrated in vacuo to give the crude products. Column chromatography on silica gel (from 9% to 20 ethyl acetate in Hexane) gave N‑sulfonyl lactam 24p (22.5 mg, 53%) as yellow amorphous solid: IR (neat, cm‑1) 2980.5, 1695.1, 1348.0, 1243.9, 1166.7, 754.0; IH NMR (400 MHz, CDCh) o 7.37‑7.44 (m, 4H, J= # Hz), 7.3ト7.38 (m, lH), 7.15 (dd, lH, J口 5.9,2.3Hz), 6.95 (s, 2H), 6.19 (ddd, lH, J口 5.9, 2.7, l.4 Hz), 4.20 (q, 2H, J = 7.4 Hz), 3.43 (dd, lH, J = 22.4, 1.4 Hz), 3.34(ddd, lH, J口 22.4,2.7,2.3Hz), 2.62 (s, 6H), 2.29 (s, 3H), 1.27 (t, 3H, J
= 7.4 Hz); 13C NMR (100 MHz, CDC13) o 167.5, 164.4, 143.6, 140.4, 137.7, 134.7, 133.6, 132.0, 129.3, 128.7, 126.7, 125.2, 6l.5, 60.6, 33.2, 22.4, 2l.0; ESI幽HRMS m/z caIcd for C23H25NI05S#I(M+Nat 450.1351, found 450.1357.
O
H
、
lJKゾ OTBDPS
Aldehyde (38). To a solution of vinyla1cohol 37 (6.00 g, 13.3 mmol) in dichloromethane (130 ml) was added Mn02 (72 g, 82.81 mmol) at room temperature, and the mixture was stirred for 30 min. The reaction mixture was fi1tered and concentrated in vacuo to give the vinylaldehyde 38 (5.29 g, 89%) as yellow oi l.
O HO'
、
I ^
ゾ OTBDPSCarboxylic acid (39). To a solution of vinylaldehyde 38 afforded above (5.29 g, 11.7 mmol) in THF (45 mL) and トBuOH(45 mL) were added 2‑methyl‑2‑butene (6.6 mL, 58.7 mmol) and solution of NaCIOz (1.62 g, 15.3 mmol) and NaH2P04・2H20(2.01 g, 12.9 mmol) in H20 (35 mL) at 0 oC. After the mixture was stirred for 2 h at room temperature, a saturated aqueous NH4Cl solution was added, and the resu1ting mixture was extracted with ethyl acetate. The organic layers were combined, washed with brine, dried over MgS04, filtered and concentrated in vacuo to give carboxylic acid 39 (4.24 g, 77%) as white solid and recovered aldehyde (740 mg, 14%) as yellow oil: IR (KBr disk, cm‑I) 2959, 2930, 2855, 1701, 1655, 1630, 1428, 1290, 1113, 824; lH NMR (400 MHz, CDCh) o 7.72‑7.61 (m, 4H), 7.50‑7.37 (m, 6H), 7.09 (t, lH, J= 2.0 Hz), 4.37 (d, 2H, J= 2.4 Hz), 1.10 (s, 9H); 13C NMR (100 MHz, CDCh)δ1691,.1354,.132.3, 130.1, 128.0, 121.7,
実 験 項 第5章
ひ o t O T
Carboxylic anhydride (40).To a solution ofcarboxylic acid 39(1.54 g, 3.31 mmol) in THF (15 mL) was added N‑methylmorphorine (0.47 mL, 4.31 mmol) at 0 oC. After the mixture was stirred for 10 min at this temperature, isobutyl chloroformate (0.52 mL, 3.98 mmol) was added. After the mixture was stirred at this temperature for 30 min, a saturated aqueous NH4Cl solution was added and the resulting mixture was extracted with ethyl acetate. The organic layers were combined, washed with brine, dried over MgS04, filtered, and concentrated in vacuo to give the crude products. Column chromatography on silica gel (from 6.6% to 9.0% ethyl acetate in Hexane) gave mixed anhydride 40 (1.79 g, 95%) as white solid.
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