1-O-tert-butyl 2-O-methyl (2R,5R)-2-[(S)-hydroxy-[(3S)-4-[(2-methylpropan-2-yl)oxycarbonyl]-1-oxa-4-azaspiro[4.5]decan-3-yl]methyl]-5-[(E)-3-methoxy-3-oxo-2-(2-trimethylsilylethoxycarbonylamino)prop-1-enyl]pyrrolidine-1,2-dicarboxylate 在
palladium on activated charcoal
氢气 作用下,
以
异丙醇 为溶剂,
反应 3.0h,
以95%的产率得到1-O-tert-butyl 2-O-methyl (2R,5R)-2-[(S)-hydroxy-[(3S)-4-[(2-methylpropan-2-yl)oxycarbonyl]-1-oxa-4-azaspiro[4.5]decan-3-yl]methyl]-5-[(2S)-3-methoxy-3-oxo-2-(2-trimethylsilylethoxycarbonylamino)propyl]pyrrolidine-1,2-dicarboxylate