HRID2288471

反应详情

EQUATION

反应方程式

HRID 2288471 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

1

PROCEDURE

实验过程

A solution of 0.40 g (0.70 mMol) of 1-methyl-2-[(4-amidinophenyl)thiomethyl]-benzimidazol-5-yl-carboxylic acid-N-(n-propyl)-N-(2-ethoxycarbonylethyl)-amide-hydrochloride in 10 ml of formic acid was mixed with 2 ml of 30% hydrogen peroxide solution and the mixture was stirred for 16 hours at room temperature. Then the solvent was distilled off in vacuo, whereupon the desired compound was obtained as a beige solid (contaminated with some 1-methyl-2-[(4-amidinophenyl)sulfinylmethyl]-benzimidazol-5-yl-carboxylic acid-N-(n-propyl)-N-(2-ethoxycarbonylethyl)-amide-hydrochloride). Yield: 95% of theory, C25H31N6O5S (513.62) Rf value: 0.50 (silica gel; ethyl acetate/ethanol/1N hydrochloric acid =50:45:5) EKA mass spectrum: (M+H)+ =514

WORKUP

后处理

  1. distillationThen the solvent was distilled off in vacuo, whereupon the desired compound
  2. customwas obtained as a beige solid (