(S)-N-{4-[(Benzyloxycarbonylmethyl-carbamoyl)-methyl]-2-oxo-2H-chromen-7-yl}-3-(9H-fluoren-9-ylmethoxycarbonylamino)-succinamic acid tert-butyl ester 在
palladium on activated charcoal
氢气 作用下,
以
甲醇 为溶剂,
反应 7.0h,
以80%的产率得到2-[[2-[7-[[(2S)-2-(9H-fluoren-9-ylmethoxycarbonylamino)-4-[(2-methylpropan-2-yl)oxy]-4-oxobutanoyl]amino]-2-oxochromen-4-yl]acetyl]amino]acetic acid