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【结 构 式】 
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【分子编号】23536 【品名】diethyl 2-(acetamido)-2-[(2-oxo-1,2-dihydro-4-quinolinyl)methyl]malonate 【CA登记号】 |
【 分 子 式 】C19H22N2O6 【 分 子 量 】374.39356 【元素组成】C 60.95% H 5.92% N 7.48% O 25.64% |
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：(III)The condensation of 4-(bromomethyl)quinolin-2(1H)-one (I) with diethyl acetamidomalonate (II) by means of sodium ethoxide in refluxing ethanol gives ethyl 2-acetamido-2-(ethoxycarbonyl)-3-(2-oxo-1,2-dihydroquinolin-4yl)propionate (III), which is submitted to a decarboxylative hydrolysis with refluxing 20% HCl yielding 3-(2-oxo-1,2-dihydroquinolin-4yl)alanine (IV). Finaily this compound is acylated with 4-chlorobenzoyl chloride by means of K2CO3 in acetone water.
| 【1】 Kanbe, T.; Nakagawa, K.; Morita, S.; Uchida, M.; Komatsu, M.; Tabusa, F.; Studies on 2(1H)-quinolinone derivatives as gastri. Chem Pharm Bull 1985, 33, 9, 3775. |
| 【2】 Uchida, M.; Komatsu, M.; Nakagawa, K. (Otsuka Pharmaceutical Co., Ltd.); Carbostyril derivs., process for their preparation. DE 3324034; US 4578381 . |
| 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) | 10288 | 4-(Bromomethyl)-2(1H)-quinolinone | C10H8BrNO | 详情 | 详情 | |
| (II) | 16710 | Diethyl 2-(acetamido)malonate; Diethyl acetamidomalonate | 1068-90-2 | C9H15NO5 | 详情 | 详情 |
| (III) | 23536 | diethyl 2-(acetamido)-2-[(2-oxo-1,2-dihydro-4-quinolinyl)methyl]malonate | C19H22N2O6 | 详情 | 详情 | |
| (IV) | 10301 | 2-Amino-3-(2-oxo-1,2-dihydro-4-quinolinyl)propionic acid | C12H12N2O3 | 详情 | 详情 | |
| (V) | 10295 | p-Chlorobenzoyl chloride; 4-Chlorobenzoyl chloride | 122-01-0 | C7H4Cl2O | 详情 | 详情 |
Extended Information