{(R)-1-[(1S,2S,4R)-2-Hydroxy-1-isobutyl-4-((S)-1-isobutylcarbamoyl-2-methyl-propylcarbamoyl)-pentylcarbamoyl]-2-methylsulfanyl-ethyl}-carbamic acid 2,5-dimethyl-oxazol-4-ylmethyl ester 在
间氯过氧苯甲酸 作用下,
以
甲醇 、
二氯甲烷 为溶剂,
生成 {(R)-1-[(1S,2S,4R)-2-Hydroxy-1-isobutyl-4-((S)-1-isobutylcarbamoyl-2-methyl-propylcarbamoyl)-pentylcarbamoyl]-2-methanesulfonyl-ethyl}-carbamic acid 2,5-dimethyl-oxazol-4-ylmethyl ester