(2S,3S)-N-(t-butoxycarbonyl)-4,5-didehydro-3,4-O-isopropylidene-5-methyl-2-phthalimidopiperidine-3,4-diol 在
palladium on activated charcoal
氢气 作用下,
以
甲醇 为溶剂,
以75%的产率得到(2S,3S,4R,5R)-N-(t-butoxycarbonyl)-3,4-O-isopropylidene-5-methyl-2-phthalimidopiperidine-3,4-diol