反应详情

In the manner given in Example 9, 7-chloro-2-hydrazino-5-(o-chlorophenyl)-3H-1,4-benzodiazepine can be stirred with α-oxopentanoic acid at room temperature to give 7-chloro-2-[(1-carboxybutylidene)hydrazino]-5-(o-chlorophenyl)-3H-1,4-benzodiazepine.