反应详情

0.45 g (0.84 mmol) of 2-[N-(4-amidinophenyl)aminomethyl]benzothiazole-5-carboxylic acid-N-phenyl-N-(2-ethoxycarbonylethyl)amide were dissolved in 15 ml of ethanol, mixed with 2 ml of 2N sodium hydroxide solution, and stirred for 4 hours at room temperature. Then the mixture was acidified with 3 ml of 2N hydrochloric acid and the solvent was distilled off. The crude product obtained was taken up in 5 ml dichloromethane/ethanol (2:1) and filtered to remove the insoluble sodium chloride. After the distillation of the solvent, the desired compound was obtained as a yellow foam.

1. distillationthe solvent was distilled off
2. customThe crude product obtained
3. filtrationfiltered
4. customto remove the insoluble sodium chloride
5. distillationAfter the distillation of the solvent