Acetic acid (R)-2-[(S)-2-(tert-butoxycarbonyl-methyl-amino)-3-methyl-butyrylamino]-3-(1H-indol-3-yl)-3-oxo-propyl ester 在
溴 作用下,
以
溶剂黄146 为溶剂,
以11.9%的产率得到Acetic acid (R)-3-(6-bromo-1H-indol-3-yl)-2-[(S)-2-(tert-butoxycarbonyl-methyl-amino)-3-methyl-butyrylamino]-3-oxo-propyl ester