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【结 构 式】 
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【分子编号】36078 【品名】(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 【CA登记号】 |
【 分 子 式 】C20H29NO3 【 分 子 量 】331.4552 【元素组成】C 72.47% H 8.82% N 4.23% O 14.48% |
合成路线1
该中间体在本合成路线中的序号：(XII)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 |