氰基硼氢化钠 、 7-(4-chlorobenzoyl)-5-(3-chlorophenyl)-1,3-dihydro-1-methyl-2H-1,4-benzodiazepin-2-one 、 、
ammonium hydroxide 在
水 、
magnesium sulfate 、
7-(4-chlorobenzoyl)-5-(3-chlorophenyl)-1,3,4,5-tetrahydro-1-methyl-2H-1,4-benzodiazepin-2-one 作用下,
以
溶剂黄146 、
甲醇 为溶剂,
反应 4.5h,
以yielding 8.25 g (85%) of 7-(4-chlorobenzoyl)-5-(3-chlorophenyl)-1,3,4,5-tetrahydro-1-methyl-2H-1,4-benzodiazepin-2-one (intermediate 8), mp. 177° C.的产率得到7-(4-chlorobenzoyl)-5-(3-chlorophenyl)-1,3,4,5-tetrahydro-1-methyl-2H-1,4-benzodiazepin-2-one