tert-butyl 4-[4-[[2-[[(2S)-1-[[(2S)-3-cyclopentyl-1-oxo-1-phenylmethoxypropan-2-yl]amino]-1,4-dioxo-4-phenylmethoxybutan-2-yl]amino]-2-oxoethyl]-ethylamino]-4-oxobutyl]piperidine-1-carboxylate 在
palladium on activated charcoal
氢气 、
溶剂黄146 作用下,
以
甲醇 、
二氯甲烷 为溶剂,
反应 18.0h,
生成 (3S)-4-[[(1S)-1-carboxy-2-cyclopentylethyl]amino]-3-[[2-[ethyl(4-piperidin-1-ium-4-ylbutanoyl)amino]acetyl]amino]-4-oxobutanoic acid;2,2,2-trifluoroacetate