反应详情

Prepared analogously to Example 9 from 2-[N-(4-cyanophenyl)-aminomethyl]-benzothiazol-5-yl-carboxylic acid-N-(n-propyl)-N-(2-ethoxycarbonylethyl)-amide, ethanolic hydrochloric acid, ethanol and ammonium carbonate. Yield: 83% of theory, C24H29N5O3 (467.59) Rf value: 0.31 (silica gel; methylene chloride/ethanol=4:1+a few drops of acetic acid) ##EQU6##