N-甲氧羰基-O-甲基异脲 、 7-chloro-2,3,4,5-tetrahydro-3-methyl-4-(3-methyl-2-butenyl)-1H-1,4-benzodiazepin-9-amine 在
溶剂黄146 作用下,
以
氯仿 为溶剂,
以22%的产率得到(+)-(S)-methyl <9-chloro-4,5,6,7-tetrahydro-5-methyl-6-(3-methyl-2-butenyl)imidazo<4,5,1-jk><1,4>benzodiazepin-2-yl>carbamate