重氮甲烷 、
(2S,4R)-4-(2-((5R,7R)-8-(tert-butoxycarbonyl)-7-isopropyl-11,11-dimethyl-9-oxo-2,4,10-trioxa-8-azadodecan-5-yl)thiazole-4-carboxamido)-2-methyl-5-phenylpentanoic acid 以
乙醚 为溶剂,
反应 0.5h,
以98%的产率得到(2S,4R)-methyl 4-(2-((5R,7R)-8-(tert-butoxycarbonyl)-7-isopropyl-11,11-dimethyl-9-oxo-2,4,10-trioxa-8-azadodecan-5-yl)thiazole-4-carboxamido)-2-methyl-5-phenylpentanoate