• English
  • 简体中文
Login Register
Current Location: Home > Feedback Help Print

【结 构 式】

【分子编号】42518

【品名】(1aS,3S,5aR,5bS,7aS,8aS,9aS,9bS,9cR,10R,10aR)-10-hydroxy-5a,7a-dimethyl-8-oxohexadecahydro-2H-cyclopropa[4',5']cyclopenta[1',2':1,2]phenanthro[8a,9-b]oxiren-3-yl pivalate

【CA登记号】

【 分 子 式 】C25H36O5

【 分 子 量 】416.55784

【元素组成】C 72.08% H 8.71% O 19.2%

与该中间体有关的原料药合成路线共 1 条

合成路线1

该中间体在本合成路线中的序号:(IV)

Drospirenone can been obtained by different ways: 1) Fermentation of 3beta-hydroxy-15beta,16beta-methylene-5-androsten-17-one (I) with Botryodiplodia malorum gives the corresponding 7beta-hydroxy derivative (II), which is regioselectively acylated with pivaloyl anhydride and DMAP in pyridine to yield the 3beta-pivaloyloxy steroid (III). The epoxidation of (III) with tert-butylhydroperoxide catalyzed by VO(acetonylacetonate)2 complex affords the corresponding epoxide (IV), which is treated with PPh3 and CCl4 in dichloromethane to provide the 7alpha-chloro derivative (V). Reaction of (V) with Zn in AcOH/THF gives 5beta-hydroxy-3beta-(pivaloyloxy)-15beta,16beta-methylene-6-androsten-17-one (VI), which is hydrolyzed with KOH and NaClO4 in methanol/THF to provide 3beta,5beta-dihydroxy-15beta,16beta-methylene-6-androsten-17-one (VII). The cyclopropanation of (VII) with diiodomethane and Zn in hot ethylene glycol dimethylether gives 3beta,5beta-dihydroxy-6beta,7beta:15beta,16beta-dimethyleneandrostan-17-one (VIII), which is condensed with propargyl alcohol (IX) by means of EtOK in THF, yielding 17alpha-(3-hydroxy-1-propynyl)-6beta,7beta:15beta,16beta-dimethyleneandrostan-3beta,5beta,17beta-triol (X). The hydrogenation of (X) with H2 over either Pd/C in THF/methanol/pyridine (1) or Pd/CaCO3 in THF/2-propanol affords the corresponding 17alpha-(3-hydroxypropyl) derivative (XI), which is finally oxidized, lactonized and dehydrated by means of CrO3 in hot pyridine/water. Similar synthetic pathways have been described replacing the pivaloyl-protecting group with either tert-butyldimethylsilyl (TBDMS), dimethyl(3-methylbutyl)silyl or tribenzylsilyl groups: 2) Alternatively, the 17alpha-(3-hydroxypropyl) derivative (XI) can be oxidized with RuCl3 and NaBrO3 in hot acetonitrile/water to give the 3-hydroxyspirolactone (XII), which is finally dehydrated by means of TsOH in THF.

1 Angew Chem 1982, 94, 718-719.
2 Norman, P.; Castaner, R.M.; Castaner, J.; Drospirenone. Drugs Fut 2000, 25, 12, 1247.
3 Nickisch, K.; Wiechert, R.; Laurent, H.; Petzoldt, K.; Bittler, D. (Schering AG); Process for preparing 3beta,7beta-dihydroxy-DELTA5-steroids. DE 3042136; EP 0051143; JP 1982122798; US 4416985; US 4614616 .
4 Mohr, J.-T.; Nickisch, K. (Schering AG); Process for producing drospirenone (6beta,7beta;15beta,16beta-dimethylene-3-oxo-17alpha-preg-4-en-21,17-carbolactone, DRSP), as well as 7alpha-(3-hydroxy-1-propyl)-6beta,7beta;15beta,16beta-dimethylene-5beta-androstane-3beta,5,17beta-triol (ZK 92836) and . DE 19633685; US 6121465; WO 9806738 .
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(I) 42507 (2S,4aR,4bS,6aS,7aS,8aS,8bR,8cR)-2-hydroxy-4a,6a-dimethyl-2,3,4,4a,4b,5,6,6a,7a,8,8a,8b,8c,9-tetradecahydrocyclopropa[4,5]cyclopenta[1,2-a]phenanthren-7(1H)-one C20H28O2 详情 详情
(II) 42508 (2S,4aR,4bS,6aS,7aS,8aS,8bS,8cR,9R)-2,9-dihydroxy-4a,6a-dimethyl-2,3,4,4a,4b,5,6,6a,7a,8,8a,8b,8c,9-tetradecahydrocyclopropa[4,5]cyclopenta[1,2-a]phenanthren-7(1H)-one C20H28O3 详情 详情
(III) 42509 (2S,4aR,4bS,6aS,7aS,8aS,8bS,8cR,9R)-9-hydroxy-4a,6a-dimethyl-7-oxo-1,2,3,4,4a,4b,5,6,6a,7,7a,8,8a,8b,8c,9-hexadecahydrocyclopropa[4,5]cyclopenta[1,2-a]phenanthren-2-yl pivalate C25H36O4 详情 详情
(IV) 42518 (1aS,3S,5aR,5bS,7aS,8aS,9aS,9bS,9cR,10R,10aR)-10-hydroxy-5a,7a-dimethyl-8-oxohexadecahydro-2H-cyclopropa[4',5']cyclopenta[1',2':1,2]phenanthro[8a,9-b]oxiren-3-yl pivalate C25H36O5 详情 详情
(V) 42510 (1aS,3S,5aR,5bS,7aS,8aS,9aS,9bS,9cR,10S,10aS)-10-chloro-5a,7a-dimethyl-8-oxohexadecahydro-2H-cyclopropa[4',5']cyclopenta[1',2':1,2]phenanthro[8a,9-b]oxiren-3-yl pivalate C25H35ClO4 详情 详情
(VI) 42511 (2S,4aR,4bS,6aS,7aS,8aS,8bR,8cR,10aR)-10a-hydroxy-4a,6a-dimethyl-7-oxo-1,2,3,4,4a,4b,5,6,6a,7,7a,8,8a,8b,8c,10a-hexadecahydrocyclopropa[4,5]cyclopenta[1,2-a]phenanthren-2-yl pivalate C25H36O4 详情 详情
(VII) 42512 (2S,4aR,4bS,6aS,7aS,8aS,8bR,8cR,10aR)-2,10a-dihydroxy-4a,6a-dimethyl-2,3,4,4a,4b,5,6,6a,7a,8,8a,8b,8c,10a-tetradecahydrocyclopropa[4,5]cyclopenta[1,2-a]phenanthren-7(1H)-one C20H28O3 详情 详情
(VIII) 42513 (1aR,1bR,3S,5aR,5bS,7aS,8aS,9aS,9bR,9cR,9dR)-1b,3-dihydroxy-5a,7a-dimethyloctadecahydro-8H-cyclopropa[4,5]cyclopenta[1,2-a]cyclopropa[l]phenanthren-8-one C21H30O3 详情 详情
(IX) 42514 2-butyn-1-ol 764-01-2 C4H6O 详情 详情
(X) 42515 (1aR,3S,5aR,5bS,7aS,8S,8aS,9aS,9bR,9cR,9dR)-8-(3-hydroxy-1-propynyl)-5a,7a-dimethyloctadecahydro-1bH-cyclopropa[4,5]cyclopenta[1,2-a]cyclopropa[l]phenanthrene-1b,3,8-triol C24H34O4 详情 详情
(XI) 42516 (1aR,3S,5aR,5bS,7aS,8S,8aS,9aS,9bR,9cS,9dR)-8-(3-hydroxypropyl)-5a,7a-dimethyloctadecahydro-1bH-cyclopropa[4,5]cyclopenta[1,2-a]cyclopropa[l]phenanthrene-1b,3,8-triol C24H38O4 详情 详情
(XII) 42517   C24H32O4 详情 详情
Extended Information