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【结 构 式】

【分子编号】64201

【品名】ethyl 5-chloro-1H-indole-2-carboxylate

【CA登记号】

【 分 子 式 】C11H10ClNO2

【 分 子 量 】223.65864

【元素组成】C 59.07% H 4.51% Cl 15.85% N 6.26% O 14.31%

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:(I)

Sulfenylation of the Grignard reagent derived from ethyl 5-chloroindole-2-carboxylate (I) with S-phenyl benzenethiosulfonate affords the 3-phenylsulfanyl indole (II). This is then alkylated with 4-chlorobenzyl chloride (III) in the presence of potassium hexamethyldisilazide to yield the N-benzyl indole derivative (IV). Finally, hydrolysis of ethyl ester (IV) by means of potassium trimethylsilanolate under anhydrous conditions produces the target carboxylic acid (1,2).

1 Yamamoto, H.; et al. (Sumitomo Chemical Co., Ltd.); 3-Hetero-substd.-N-benzyl-indoles. US 3907812 .
2 Gillard, J.W.; Morton, H.E.; Fortin, R.; Guindon, Y. (Merck Frosst Canada Inc.); 3-Hetero-substd.-N-benzyl-indoles and prevention of leucotriene synthesis therewith. US 5081138 .
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) 64201 ethyl 5-chloro-1H-indole-2-carboxylate C11H10ClNO2 详情 详情
(II) 64202 ethyl 5-chloro-3-(phenylsulfanyl)-1H-indole-2-carboxylate C17H14ClNO2S 详情 详情
(III) 10356 1-Chloro-4-(chloromethyl)benzene; 4-Chlorobenzyl chloride 104-83-6 C7H6Cl2 详情 详情
(IV) 64203 ethyl 5-chloro-1-(4-chlorobenzyl)-3-(phenylsulfanyl)-1H-indole-2-carboxylate C24H19Cl2NO2S 详情 详情
Extended Information