Thioacetic acid S-[(1S,2R)-2-tert-butoxycarbonylamino-1-(3-methyl-butylcarbamoyl)-3-phenyl-propyl] ester 在
sodium hydroxide 作用下,
以85%的产率得到[(1R,2S)-1-Benzyl-2-[(1S,2R)-2-tert-butoxycarbonylamino-1-(3-methyl-butylcarbamoyl)-3-phenyl-propyldisulfanyl]-2-(3-methyl-butylcarbamoyl)-ethyl]-carbamic acid tert-butyl ester