2-[3-(2-benzyloxycarbonylamino-3-hydroxy-butyrylamino)-propylamino]-3-{3,4-bis-(tert-butyl-dimethyl-silanyloxy)-5-[3-(4-methoxy-benzyl)-2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl]-tetrahydro-furan-2-yl}-3-hydroxy-propionic acid tert-butyl ester 在
palladium on activated charcoal
氢气 作用下,
以
甲醇 为溶剂,
以97%的产率得到tert-butyl (2S,3R)-2-[3-[[(2S,3S)-2-amino-3-hydroxybutanoyl]amino]propylamino]-3-[(2R,3R,4R,5R)-3,4-bis[[tert-butyl(dimethyl)silyl]oxy]-5-[3-[(4-methoxyphenyl)methyl]-2,4-dioxopyrimidin-1-yl]oxolan-2-yl]-3-hydroxypropanoate