2-氨基-2',5-二氯二苯酮 、 甲酸 以whereby 5, 2'-dichloro-2-formylaminobenzophenone (pale yellow granules melting at 106° to 107° C) is obtained的产率得到N-[4-chloro-2-(2-chlorobenzoyl)phenyl]formamide
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Methods for the production of 4H-s-triazolo[4,3-a][1,4]benzodiazepine