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【结 构 式】 
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【药物名称】CDB-4124 【化学名称】17alpha-Acetoxy-11beta-[4-(dimethylamino)phenyl]-21-methoxy-19-norpregna-4,9-diene- 3,20-dione 【CA登记号】198414-31-2 【 分 子 式 】C31H39NO5 【 分 子 量 】505.66018 |
【开发单位】National Institute of Child Health (Originator), US Department of Health & Human Services (Originator) 【药理作用】Contraceptives, Disorders of Sexual Function and Reproduction, Treatment of, ENDOCRINE DRUGS, Progesterone Receptor Antagonists |
合成路线1
Protection of cyanohydrin ketal (I) with bromomethyldimethylsilyl chloride (A) in presence of DMAP and Et3N affords derivative (II), which is converted into (III) by means of LDA in cyclohexane and aqueous HBr. Treatment of (III) with KOAc in acetone yields acetoxy derivative (IV), which is then hydrolyzed to provide (V) by means of KHCO3 in refluxing MeOH. Protection of (V) as its acetal form by treatment with ethylene glycol in p-TsOH affords (VI), which is converted into methyl ether (VII) by treatment with Me3O+BF4- in presence of 1,8-bis(dimethylamino)-naphthalene. Oxidation of (VII) by means of H2O2, Na2HPO4 and (CF3)2CO in CH2Cl2 yields epoxide (VIII), which is converted into (X) by a Grignard reaction with (IX) in THF followed by treatment with CuCl. Diketal (X) is then deprotected by means of TFA in THF to provide derivative (XI), which is finally acetylated with (CF3CO)2O in a mixture of HOAc, p-TsOH and CH2Cl2.
| 【1】 Kim, H.K.; Blye, R.P.; Rao, P.N.; Cessac, J.W.; Acosta, C.K. (US Department of Health & Human Services); 21-Substd. progesterone derivs. as new antiprogestational agents. JP 2000509396; WO 9741145 . |
| 中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
|---|---|---|---|---|---|---|
| 11295 | Polyethylene glycol;1,2-Ethanediol;Monoethylene glycol; Ethylene glycol | 107-21-1 | C2H6O2 | 详情 | 详情 | |
| (A) | 41668 | (bromomethyl)(chloro)dimethylsilane | 16532-02-8 | C3H8BrClSi | 详情 | 详情 |
| (I) | 40864 | C21H27NO3 | 详情 | 详情 | ||
| (II) | 41669 | C24H34BrNO3Si | 详情 | 详情 | ||
| (III) | 41670 | (13S,17R)-17-(2-bromoacetyl)-17-hydroxy-13-methyl-1,2,6,7,8,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-3-one | C20H25BrO3 | 详情 | 详情 | |
| (IV) | 41671 | 2-[(13S,17R)-17-hydroxy-13-methyl-3-oxo-2,3,6,7,8,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-17-yl]-2-oxoethyl acetate | C22H28O5 | 详情 | 详情 | |
| (V) | 41672 | (13S,17R)-17-glycoloyl-17-hydroxy-13-methyl-1,2,6,7,8,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-3-one | C20H26O4 | 详情 | 详情 | |
| (VI) | 41673 | C24H34O6 | 详情 | 详情 | ||
| (VII) | 41674 | C25H36O6 | 详情 | 详情 | ||
| (VIII) | 41675 | C25H36O7 | 详情 | 详情 | ||
| (IX) | 10863 | Bromo[4-(dimethylamino)phenyl]magnesium | 7353-91-5 | C8H10BrMgN | 详情 | 详情 |
| (X) | 41676 | C33H47NO7 | 详情 | 详情 | ||
| (XI) | 41677 | (11R,13S,17R)-11-[4-(dimethylamino)phenyl]-17-hydroxy-17-(2-methoxyacetyl)-13-methyl-1,2,6,7,8,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-3-one | C29H37NO4 | 详情 | 详情 |