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【结 构 式】 
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【分子编号】22451 【品名】(3S,3aS,5aS,6R,9aS,9bS)-6-(2-carboxyethyl)-3a,6-dimethyl-7-oxododecahydro-1H-cyclopenta[a]naphthalene-3-carboxylic acid 【CA登记号】 |
【 分 子 式 】C19H28O5 【 分 子 量 】336.42832 【元素组成】C 67.83% H 8.39% O 23.78% |
合成路线1
该中间体在本合成路线中的序号：(XI)The oxidation of 3-oxo-4-etienic acid (V) with NaIO4 and KMnO4 in tert-butanol - water gives 5-oxo-3,5-secoandrostane-3,17beta-dioic acid (XI), which is cyclized with methylamine in ethanol at 180 C in a pressure vessel yielding 17beta-carboxy-4-methyl-4-aza-5-androsten-3-one (XII). The hydrogenation of (XII) with H2 over Pt in acetic acid affords 17beta-carboxy-4-methyl-4-azaandrostan-3-one (XIII), which is finally treated with oxalyl chloride (B) and diethylamine in toluene-THF. The amidation of (XIII) with oxalyl chloride (B) and NH3 in toluene-THF gives 17beta-carboxamide-4-methyl-4-azaandrostanone (XIV), which is alkylated with ethyl bromide and NaH in toluene. The amidation of (XIII) with ethylamine and oxalyl chloride (B) in toluene-THF gives 17beta-(N-ethylcarbamoyl)-4-methyl-4-azaandrostan-3-one (XV), which is finally alkylated with ethyl bromide and NaH in toluene.
| 【1】 Hillier, K.; Blancafort, P.; Serradell, M.N.; Castaner, J.; 4-MA. Drugs Fut 1983, 8, 4, 323. |
| 【2】 Jobson, R.B.; Johnston, D.B.R.; Rasmusson, G.H.; Reinhold, D.F.; Utne, T. (Merck & Co., Inc.); Preparation of 4-aza-17-substituted-5 alpha -androstan-3-ones useful as 5 alpha -reductase inhibitors. US 4220775 . |
| 中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
|---|---|---|---|---|---|---|
| (B) | 29841 | Oxalyl chloride; 2-Chloro-2-oxoacetyl chloride | 79-37-8 | C2Cl2O2 | 详情 | 详情 |
| (V) | 14892 | (8S,9S,10R,13S,14S,17S)-10,13-dimethyl-3-oxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene-17-carboxylic acid; 4-Androstene-3-oxo-17-beta-carboxylic acid | 7385-78-6 | C20H28O3 | 详情 | 详情 |
| (XI) | 22451 | (3S,3aS,5aS,6R,9aS,9bS)-6-(2-carboxyethyl)-3a,6-dimethyl-7-oxododecahydro-1H-cyclopenta[a]naphthalene-3-carboxylic acid | C19H28O5 | 详情 | 详情 | |
| (XII) | 36078 | (4aR,4bS,6aS,7S,9aS,9bS)-1,4a,6a-trimethyl-2-oxo-2,3,4,4a,4b,5,6,6a,7,8,9,9a,9b,10-tetradecahydro-1H-indeno[5,4-f]quinoline-7-carboxylic acid | C20H29NO3 | 详情 | 详情 | |
| (XIII) | 14890 | (4aR,4bS,6aS,7S,9aS,9bS,11aR)-1,4a,6a-trimethyl-2-oxohexadecahydro-1H-indeno[5,4-f]quinoline-7-carboxylic acid | C20H31NO3 | 详情 | 详情 | |
| (XIV) | 36079 | (4aR,4bS,6aS,7S,9aS,9bS,11aR)-1,4a,6a-trimethyl-2-oxohexadecahydro-1H-indeno[5,4-f]quinoline-7-carboxamide | C20H32N2O2 | 详情 | 详情 | |
| (XV) | 36080 | (4aR,4bS,6aS,7S,9aS,9bS,11aR)-N-ethyl-1,4a,6a-trimethyl-2-oxohexadecahydro-1H-indeno[5,4-f]quinoline-7-carboxamide | C22H36N2O2 | 详情 | 详情 |
合成路线2
该中间体在本合成路线中的序号：(VIII)2) The oxidation of 3-oxo-4-androstene-17beta-carboxylic acid (I) with KMnO4/NaIO4/Na2CO3 in refluxing tert-butanol/water affords the seco-steroid (VIII), which is cyclized with NH3 in ethylene glycol at 180 C, giving the 5-unsaturated steroid (IX). The hydrogenation of (IX) with H2 over PtO2 in acetic acid yields the saturated azasteroid (X), which is esterified with 2,2-dimethoxypropane/HCl in methanol to afford the corresponding methyl ester (XI). The dehydrogenation of (XI) with phenylseleninic anhydride in refluxing chlorobenzene gives the 1-unsaturated azasteroid (XII), which is hydrolyzed with KOH in refluxing methanol/water to yield the corresponding unsaturated free acid (XIII). The esterification of (XIII) with 2,2'-dipyridyl disulfide (XIV) by means of triphenylphosphine in toluene affords the 2-pyridyl thioester (XV), which is finally amidated with 2,5-bis(trifluoromethyl)aniline (III) by means of silver trifluomethanesulfonate in dichloromethane. 3) The previously obtained unsaturated free acid (XIII) can also be treated with SOCl2 in pyridine to give the corresponding acyl chloride (XVI), which is then condensed directly with 2,5-bis(trifluoromethyl)aniline (III) in pyridine.
| 【1】 Ellsworth, K.; Mosley, R.T.; Chang, B.; Rasmusson, G.H.; Harris, G.S.; Patel, G.F.; Tolman, R.L.; Bakshi, R.K.; 4-Aza-3-oxo-5alpha-androst-1-ene-17beta-N-aryl-car. J Med Chem 1995, 38, 17, 3189. |
| 【2】 Graul, A.; Silvestre, J.S.; Castañer, J.; Dutasteride. Drugs Fut 1999, 24, 3, 246. |
| 【3】 Rasmusson, G.H.; Reynolds, G.F.; Steinberg, N.G.; Walton, E.; Patel, G.F.; Liang, T.; Cascieri, M.A.; Cheung, A.H.; Brooks, J.R.; Berman, C.; Azasteroids: structure-activity relationships for inhibition of 5 alpha-reductase and of androgen receptor binding. J Med Chem 1986, 29, 11, 2298. |
| 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) | 14892 | (8S,9S,10R,13S,14S,17S)-10,13-dimethyl-3-oxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene-17-carboxylic acid; 4-Androstene-3-oxo-17-beta-carboxylic acid | 7385-78-6 | C20H28O3 | 详情 | 详情 |
| (III) | 22446 | 2,5-bis(trifluoromethyl)phenylamine; 2,5-bis(trifluoromethyl)aniline | 328-93-8 | C8H5F6N | 详情 | 详情 |
| (VIII) | 22451 | (3S,3aS,5aS,6R,9aS,9bS)-6-(2-carboxyethyl)-3a,6-dimethyl-7-oxododecahydro-1H-cyclopenta[a]naphthalene-3-carboxylic acid | C19H28O5 | 详情 | 详情 | |
| (IX) | 13010 | (4aR,4bS,6aS,7S,9aS,9bS)-4a,6a-Dimethyl-2-oxo-2,3,4,4a,4b,5,6,6a,7,8,9,9a,9b,10-tetradecahydro-1H-indeno[5,4-f]quinoline-7-carboxylic acid | C19H27NO3 | 详情 | 详情 | |
| (X) | 22453 | (4aR,4bS,6aS,7S,9aS,9bS,11aR)-4a,6a-dimethyl-2-oxohexadecahydro-1H-indeno[5,4-f]quinoline-7-carboxylic acid | C19H29NO3 | 详情 | 详情 | |
| (XI) | 13527 | methyl (4aR,4bS,6aS,7S,9aS,9bS,11aR)-4a,6a-dimethyl-2-oxohexadecahydro-1H-indeno[5,4-f]quinoline-7-carboxylate | C20H31NO3 | 详情 | 详情 | |
| (XII) | 13009 | methyl (4aS,4bS,6aS,7S,9aS,9bS,11aR)-4a,6a-dimethyl-2-oxo-2,4a,4b,5,6,6a,7,8,9,9a,9b,10,11,11a-tetradecahydro-1H-indeno[5,4-f]quinoline-7-carboxylate | C20H29NO3 | 详情 | 详情 | |
| (XIII) | 13533 | (4aS,4bS,6aS,7S,9aS,9bS,11aR)-4a,6a-Dimethyl-2-oxo-2,4a,4b,5,6,6a,7,8,9,9a,9b,10,11,11a-tetradecahydro-1H-indeno[5,4-f]quinoline-7-carboxylic acid | C19H27NO3 | 详情 | 详情 | |
| (XIV) | 22457 | 2,2'-Dithiodipyridine; 2-(2-pyridinyldisulfanyl)pyridine; 2,2'-Dipyridinyl disulfide | 2127-03-9 | C10H8N2S2 | 详情 | 详情 |
| (XV) | 22458 | S-(2-pyridinyl) (4aS,4bS,6aS,7S,9aS,9bS,11aR)-4a,6a-dimethyl-2-oxo-2,4a,4b,5,6,6a,7,8,9,9a,9b,10,11,11a-tetradecahydro-1H-indeno[5,4-f]quinoline-7-carbothioate | C24H30N2O2S | 详情 | 详情 | |
| (XVI) | 18975 | (4aS,4bS,6aS,7S,9aS,9bS,11aR)-4a,6a-dimethyl-2-oxo-2,4a,4b,5,6,6a,7,8,9,9a,9b,10,11,11a-tetradecahydro-1H-indeno[5,4-f]quinoline-7-carbonyl chloride | C19H26ClNO2 | 详情 | 详情 |
合成路线3
该中间体在本合成路线中的序号：(II)
| 【1】 Davis R,Millar A, et 2002. Preparation of 3-oxo-4-azasteroids via stereoselective hydrogenation.W0 2002046207 |
| 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) | 14892 | (8S,9S,10R,13S,14S,17S)-10,13-dimethyl-3-oxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene-17-carboxylic acid; 4-Androstene-3-oxo-17-beta-carboxylic acid | 7385-78-6 | C20H28O3 | 详情 | 详情 |
| (II) | 22451 | (3S,3aS,5aS,6R,9aS,9bS)-6-(2-carboxyethyl)-3a,6-dimethyl-7-oxododecahydro-1H-cyclopenta[a]naphthalene-3-carboxylic acid | C19H28O5 | 详情 | 详情 | |
| (III) | 13010 | (4aR,4bS,6aS,7S,9aS,9bS)-4a,6a-Dimethyl-2-oxo-2,3,4,4a,4b,5,6,6a,7,8,9,9a,9b,10-tetradecahydro-1H-indeno[5,4-f]quinoline-7-carboxylic acid | C19H27NO3 | 详情 | 详情 | |
| (IV) | 22453 | (4aR,4bS,6aS,7S,9aS,9bS,11aR)-4a,6a-dimethyl-2-oxohexadecahydro-1H-indeno[5,4-f]quinoline-7-carboxylic acid | C19H29NO3 | 详情 | 详情 | |
| (V) | 13533 | (4aS,4bS,6aS,7S,9aS,9bS,11aR)-4a,6a-Dimethyl-2-oxo-2,4a,4b,5,6,6a,7,8,9,9a,9b,10,11,11a-tetradecahydro-1H-indeno[5,4-f]quinoline-7-carboxylic acid | C19H27NO3 | 详情 | 详情 |