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【结 构 式】 
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【药物名称】GW-250495 【化学名称】16alpha,17alpha-[(R)-Butylidenedioxy]-6alpha,9alpha-difluoro-11beta-hydroxy-3-oxo-4-androstene-17beta-carbothioic acid S-(2-oxotetrahydrofuran-3-y) ester 【CA登记号】 【 分 子 式 】C28H36F2O7S 【 分 子 量 】554.65572 |
【开发单位】GlaxoSmithKline (Originator) 【药理作用】Antiallergy/Antiasthmatic Drugs, Asthma Therapy, RESPIRATORY DRUGS, Corticosteroids |
合成路线1
Treatment of carboxylic acid (I) with diethyl chlorophosphate (II) in the presence of Et3N furnished the corresponding mixed anhydride (III). This was then condensed with the sodium salt of alpha-mercapto-gamma-butyrolactone (IV) to produce the title thioester.
| 【1】 Biggadike, K.; Procopiou, P.A. (Glaxo Wellcome plc); Lactone derivs. of 17beta-carboxy, carbothio and amide androstane derivs.. JP 1999501675; US 6197761; WO 9724365 . |
| 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) | 47372 | (4aS,4bR,5S,6aS,8R,9aR,10aS,10bS,12S)-4b,12-difluoro-5-hydroxy-4a,6a-dimethyl-2-oxo-8-propyl-2,3,4,4a,4b,5,6,6a,9a,10,10a,10b,11,12-tetradecahydro-6bH-naphtho[2',1':4,5]indeno[1,2-d][1,3]dioxole-6b-carboxylic acid | C24H32F2O6 | 详情 | 详情 | |
| (II) | 23623 | Chlorophosphoric acid ethyl ester；Phosphorochloridic acid diethyl ester；Diethyl chlorophosphate;diethyl phosphorochloridate | 814-49-3 | C4H10ClO3P | 详情 | 详情 |
| (III) | 47373 | [(4aS,4bR,5S,6aS,8R,9aR,10aS,10bS,12S)-4b,12-difluoro-5-hydroxy-4a,6a-dimethyl-2-oxo-8-propyl-2,3,4,4a,4b,5,6,6a,9a,10,10a,10b,11,12-tetradecahydro-6bH-naphtho[2',1':4,5]indeno[1,2-d][1,3]dioxol-6-yl]carbonyl diethyl phosphate | C28H41F2O9P | 详情 | 详情 | |
| (IV) | 46294 | 3-sulfanyldihydro-2(3H)-furanone | C4H6O2S | 详情 | 详情 |
Extended Information