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【结 构 式】

【分子编号】13750

【品名】methyl 7-[(1R,2R,3R,5S)-3-[[tert-butyl(dimethyl)silyl]oxy]-2-((E,3S)-3-[[tert-butyl(dimethyl)silyl]oxy]-1-octenyl)-5-((R)-[dimethyl(phenyl)silyl][[(methylsulfanyl)carbothioyl]oxy]methyl)cyclopentyl]-5-heptynoate

【CA登记号】

【 分 子 式 】C44H76O5S2Si3

【 分 子 量 】833.47294

【元素组成】C 63.41% H 9.19% O 9.6% S 7.69% Si 10.11%

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:(XXVII)

2) The methylenation of the disilylated 5,6-didehydroprostaglandin E2 (XVIII) with Zn/CH2Br2/TiCl4 as before gives the methylene derivative (XIX), which is converted into the hydroxymethyl derivative (XX) with 9-BBN also as before. The oxidation of (XX) with CrO3/Pyr in dichloromethane yields the corresponding aldehyde (XXI), which is treated with [Ph(Me)2Si]2CuCNLi2 [(PDMS)2CuCNLi2] affording the trisilylated compound (XXII). The esterification of the hydroxy group of (XXII) with 3-(trifluoromethyl)benzoyl chloride (XXIII) by means of DMAP in acetonitrile gives the benzoate (XXIV), which is cyclized by means of N-methylcarbazol (NMC) and magnesium perchlorate in THF/water and irradiation with a 500 W UV-lamp giving the bicyclo[3.3.0]octan-3-ylidene derivative (XXV). The selective desilylation of (XXV) with HClO4 in ether/methanol gives the dihydroxycarbacyclin (XXVI), which is finally desilylated and simultaneously isomerized by a treatment with trifluoroacetic acid in dichloromethane affording the expected clinprost. 3) The cyclization of (XXII) to (XXV) can also be performed by treatment of (XXII) with CS2, CH3I and lithium diisopropylamide in THF to give (XXVII), which is then cyclized to (XXV) by means of Bu3SnH and di-tert-butyl peroxide in hot benzene.

1 Graul, A.; Leeson, P.; Castaner, J.; Clinprost. Drugs Fut 1997, 22, 6, 608.
2 Suzuki, M.; Koyano, H.; Noyori, R.; A controlled synthesis of isocarbacyclin. J Org Chem 1987, 52, 25, 5583-8.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(XVIII) 13741 methyl 7-[(1R,2R,3R)-3-[[tert-butyl(dimethyl)silyl]oxy]-2-((E,3S)-3-[[tert-butyl(dimethyl)silyl]oxy]-1-octenyl)-5-oxocyclopentyl]-5-heptynoate C33H60O5Si2 详情 详情
(XIX) 13742 methyl 7-[(1R,2R,3R)-3-[[tert-utyl(dimethyl)silyl]oxy]-2-((E,3S)-3-[[tert-butyl(dimethyl)silyl]oxy]-1-octenyl)-5-methylenecyclopentyl]-5-heptynoate C34H62O4Si2 详情 详情
(XX) 13743 methyl 7-[(1S,2S,3R,5S)-3-[[tert-butyl(dimethyl)silyl]oxy]-2-((E,3S)-3-[[tert-butyl(dimethyl)silyl]oxy]-1-octenyl)-5-(hydroxymethyl)cyclopentyl]-5-heptynoate C34H64O5Si2 详情 详情
(XXI) 13744 methyl 7-[(1R,2R,3R,5S)-3-[[tert-butyl(dimethyl)silyl]oxy]-2-((E,3S)-3-[[tert-butyl(dimethyl)silyl]oxy]-1-octenyl)-5-formylcyclopentyl]-5-heptynoate C34H62O5Si2 详情 详情
(XXII) 13745 methyl 7-[(1R,2R,3R,5S)-3-[[tert-butyl(dimethyl)silyl]oxy]-2-((E,3S)-3-[[tert-butyl(dimethyl)silyl]oxy]-1-octenyl)-5-[(R)-[dimethyl(phenyl)silyl](hydroxy)methyl]cyclopentyl]-5-heptynoate C42H74O5Si3 详情 详情
(XXIII) 13746 3-(Trifluoromethyl)benzoyl chloride 2251-65-2 C8H4ClF3O 详情 详情
(XXIV) 13747 (R)-[(1S,2R,3R,4R)-4-[[tert-butyl(dimethyl)silyl]oxy]-3-((E,3S)-3-[[tert-butyl(dimethyl)silyl]oxy]-1-octenyl)-2-(7-methoxy-7-oxo-2-heptynyl)cyclopentyl][dimethyl(phenyl)silyl]methyl 3-(trifluoromethyl)benzoate C50H77F3O6Si3 详情 详情
(XXV) 13748 methyl 5-[(1R,3aR,4R,5R,6aS)-5-[[tert-butyl(dimethyl)silyl]oxy]-4-((E,3S)-3-[[tert-butyl(dimethyl)silyl]oxy]-1-octenyl)-1-[dimethyl(phenyl)silyl]hexahydro-2(1H)-pentalenylidene]pentanoate C42H74O4Si3 详情 详情
(XXVI) 13749 methyl 5-[(1R,3aR,4R,5R,6aS)-1-[dimethyl(phenyl)silyl]-5-hydroxy-4-[(E,3S)-3-hydroxy-1-octenyl]hexahydro-2(1H)-pentalenylidene]pentanoate C30H46O4Si 详情 详情
(XXVII) 13750 methyl 7-[(1R,2R,3R,5S)-3-[[tert-butyl(dimethyl)silyl]oxy]-2-((E,3S)-3-[[tert-butyl(dimethyl)silyl]oxy]-1-octenyl)-5-((R)-[dimethyl(phenyl)silyl][[(methylsulfanyl)carbothioyl]oxy]methyl)cyclopentyl]-5-heptynoate C44H76O5S2Si3 详情 详情
Extended Information