(2S,5'S)-4-((R)-1-Carboxy-3-methyl-butyl)-5'-[3-(9H-fluoren-9-ylmethoxycarbonylamino)-2-oxo-propyl]-2,5'-diisobutyl-3,4'-dioxo-2,3,4',5'-tetrahydro-[2,3']bipyrrolyl-1,1'-dicarboxylic acid diallyl ester 在
bis-triphenylphosphine-palladium(II) chloride 、
三正丁基氢锡 、
溶剂黄146 作用下,
以
二氯甲烷 为溶剂,
以72%的产率得到(R)-2-{(2S,5'S)-5'-[3-(9H-Fluoren-9-ylmethoxycarbonylamino)-2-oxo-propyl]-2,5'-diisobutyl-3,4'-dioxo-2,3,4',5'-tetrahydro-1H,1'H-[2,3']bipyrrolyl-4-yl}-4-methyl-pentanoic acid