(S)-2-{3-[(3S,6S,9S,12S,15S)-3-(2-Bromo-5-hydroxy-1H-indol-3-ylmethyl)-6,9-diisobutyl-7,12-dimethyl-2,5,8,11,14-pentaoxo-1,4,7,10,13-pentaaza-cyclononadec-15-yl]-ureido}-4-methyl-pentanoic acid allyl ester 在
四(三苯基膦)钯 作用下,
以
四氢呋喃 为溶剂,
反应 5.0h,
以75%的产率得到(S)-2-{3-[(3S,6S,9S,12S,15S)-3-(2-Bromo-5-hydroxy-1H-indol-3-ylmethyl)-6,9-diisobutyl-7,12-dimethyl-2,5,8,11,14-pentaoxo-1,4,7,10,13-pentaaza-cyclononadec-15-yl]-ureido}-4-methyl-pentanoic acid