methyl (2S,3S,4R)-2-methyl-6-oxo-4-[[(1R)-1-phenylethyl]amino]oxane-3-carboxylate,hydrochloride 在
platinum on activated charcoal
氢气 、
三氟乙酸 作用下,
以
溶剂黄146 为溶剂,
反应 30.0h,
以81%的产率得到<2S-<2α,3α,4β(R*)>>-tetrahydro-2-methyl-6-oxo-4-<(1-cyclohexylethyl)amino>-2H-pyran-3-carboxylic acid methyl ester hydrochloride