(1R)-1-methyl-2-phenylcarbonyloxyethyl (2S)-2-[(tert-butoxy)carbonylamino]-3-[3,4-bis(phenylmethoxy)phenyl]propanoate 在
钯 氮气 、
氢气 、
甲醇 、 silica gel 、
乙酸乙酯 、
正己烷 作用下,
以
甲醇 为溶剂,
反应 2.0h,
以chromatography of the residue (silica gel, 30% ethyl acetate in hexane) afforded 1.87 g (100%) of (1R)-1-Methyl-2-phenylcarbonyloxyethyl (2S)-3-(3,4-dihydroxyphenyl)-2-[(tert-butoxy)carbonylamino]propanoate MS (ESI) m/z 460.20 (M+H)+ and 458.17 (M−H)−的产率得到(1R)-1-methyl-2-phenylcarbonyloxyethyl (2S)-3-(3,4-dihydroxyphenyl)-2-[(tert-butoxy)carbonylamino]propanoate