(4R,5S)-N-isopentyl-5-<<(tert-butyloxy)carbonyl>amino>-4-hydroxy7-methyloct-1-ene-2-carboxamide 在
N-甲基吗啉 、
盐酸 作用下,
以
1,4-二氧六环 为溶剂,
反应 3.5h,
生成 ((S)-1-{(S)-1-[(1S,2R)-2-Hydroxy-1-isobutyl-4-(3-methyl-butylcarbamoyl)-pent-4-enylcarbamoyl]-ethylcarbamoyl}-2-phenyl-ethyl)-carbamic acid tert-butyl ester