7-acetyl-1H-indole-2-carboxylic acid [(1S,2R)-2-(cyanomethyl-carbamoyl)-cyclohexyl]-amide 、
盐酸氨基脲 在
potassium acetate 作用下,
以
甲醇 为溶剂,
生成 7-[1-(carbamoyl-hydrazono)-ethyl]-1H-indole-2-carboxylic acid [(1S,2R)-2-(cyanomethyl-carbamoyl)-cyclohexyl]-amide