BOC-(D)-Met(O2)-Gly-Phe-NHNH-COCH3 、
N-(tert-Butoxycarbonyl)-L-tyrosyl p-nitrobenzyl ester 以the desired compound is obtained in a similar manner to (V) of Example 26的产率得到[(S)-1-[(R)-1-({[(S)-2-(N'-Acetyl-hydrazino)-1-benzyl-2-oxo-ethylcarbamoyl]-methyl}-carbamoyl)-3-methanesulfonyl-propylcarbamoyl]-2-(4-hydroxy-phenyl)-ethyl]-carbamic acid tert-butyl ester