{N'-[1-(4-Chloro-phenyl)-1-(4-trifluoromethanesulfonyloxy-phenyl)-meth-(E)-ylidene]-hydrazino}-oxo-acetic acid ethyl ester 、 alkaline earth salt of/the/ methylsulfuric acid 以
甲醇 为溶剂,
生成 Trifluoro-methanesulfonic acid 4-[(4-chloro-phenyl)-(ethylaminooxalyl-hydrazono)-methyl]-phenyl ester