2-Methyl-4-phenyl-6-((2S,3S,4R,5S,6R)-3,4,5-tris-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yl)-1,4-dihydro-pyridine-3,5-dicarboxylic acid diethyl ester 在
palladium dihydroxide 氢气 作用下,
以
乙醇 、
乙酸乙酯 为溶剂,
以95%的产率得到2-Methyl-4-phenyl-6-((2S,3R,4R,5R,6R)-3,4,5-trihydroxy-6-hydroxymethyl-tetrahydro-pyran-2-yl)-1,4-dihydro-pyridine-3,5-dicarboxylic acid diethyl ester