{5-[2-(tert-butoxycarbonyl-methyl-amino)-propionylamino]-6-oxo-6-[4-(1,2,3,4-tetrahydro-naphthalen-1-ylcarbamoyl)-thiazolidin-3-yl]-hexyl}-carbamic acid 9H-fluoren-9-ylmethyl ester 在
二乙胺 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 3.0h,
以99%的产率得到(1-{5-amino-1-[4-(1,2,3,4-tetrahydro-naphthalen-1-ylcarbamoyl)-thiazolidine-3-carbonyl]-pentylcarbamoyl}-ethyl)-methyl-carbamic acid tert-butyl ester