5-{(3R,S)-7-acetyl-3-(4-chloro-phenyl)-4-[1-(R)-(4-chlorophenyl)-ethyl]-2,5-dioxo-2,3,4,5-tetrahydro-benzo[e][1,4]diazepin-1-yl}-valeric acid tert-butyl ester 在
sodium tetrahydroborate 作用下,
以
甲醇 为溶剂,
反应 18.0h,
以92%的产率得到5-[(3S)-3-(4-chloro-phenyl)-4-[(R)-1-(4-chloro-phenyl)-ethyl]-7-[(R,S)-1-hydroxy-ethyl]-2,5-dioxo-2,3,4,5-tetrahydro-benzo[e][1,4]diazepin-1-yl]-valeric acid tert-butyl ester