Methyl (+/-)-7-[[[N-(2-benzothiazolyl)methyl-N-methyl]amino]carbonyl]4-methyl-3-oxo-2,3,4,5-tetrahydro-1H-1,4-benzodiazepine-2-acetate 在
sodium hydroxide 作用下,
以
甲醇 、
乙醚 为溶剂,
以89%的产率得到(+/-)-7-[[[N-(2-benzothiazolyl)methyl-N-methyl]amino]carbonyl]4-methyl-3-oxo-2,3,4,5-tetrahydro-1H-1,4-benzodiazepine-2-acetic acid