【结 构 式】 |
【分子编号】34298 【品名】ethyl 2-[(6-ethoxy-1,3-benzothiazol-2-yl)sulfanyl]-2-phenylpropanoate 【CA登记号】 |
【 分 子 式 】C20H21NO3S2 【 分 子 量 】387.52368 【元素组成】C 61.99% H 5.46% N 3.61% O 12.39% S 16.55% |
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)This compound can be obtained by two different ways: 1) The condensation of 2-mercapto-6-ethoxybenzothiazole (I) with 2-bromo-2-phenylpropionate (II) by means of sodium ethoxide in refluxing ethanol gives 2-phenyl-2-[(6-ethoxy-2-benzothiazoyl)thio]propionate (III), which is then hydrolyzed with KOH in ethanol. 2) By condensation of 2-chloro-6-ethoxybenzothiazole (IV) with 2-mercapto-2-phenylpropionic acid (V) by means of NaOH in refluxing butanol.
【1】 Doll, T.; Scacht, E.; Radunz, H.E.; Schulze, E.; Benzothiazole derivatives and pharmaceutical formulations containing them. DE 2950095; EP 0030632; ES 8203867; JP 56092881; US 4294839 . |
【2】 Serradell, M.N.; Castaner, J.; Tazasubrate. Drugs Fut 1984, 9, 9, 667. |
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) | 34296 | 6-ethoxy-1,3-benzothiazol-2-ylhydrosulfide; 6-ethoxy-1,3-benzothiazole-2-thiol | 120-53-6 | C9H9NOS2 | 详情 | 详情 |
(II) | 34297 | ethyl 2-bromo-2-phenylpropanoate | C11H13BrO2 | 详情 | 详情 | |
(III) | 34298 | ethyl 2-[(6-ethoxy-1,3-benzothiazol-2-yl)sulfanyl]-2-phenylpropanoate | C20H21NO3S2 | 详情 | 详情 | |
(IV) | 34299 | 2-chloro-6-ethoxy-1,3-benzothiazole; 2-chloro-1,3-benzothiazol-6-yl ethyl ether | C9H8ClNOS | 详情 | 详情 | |
(V) | 34300 | 2-phenyl-2-sulfanylpropionic acid | C9H10O2S | 详情 | 详情 |
Extended Information