(2R,3S,6R)-6-((S)-2,3-Dimethoxy-propyl)-3-hydroxy-5,5-dimethyl-4-oxo-tetrahydro-pyran-2-carbonitrile 在
dimethyl sulfide borane 作用下,
以
四氢呋喃 为溶剂,
反应 0.33h,
生成 (2R,3R,4S,6R)-6-((S)-2,3-Dimethoxy-propyl)-3,4-dihydroxy-5,5-dimethyl-tetrahydro-pyran-2-carbonitrile 、 (2R,3R,4R,6R)-6-((S)-2,3-Dimethoxy-propyl)-3,4-dihydroxy-5,5-dimethyl-tetrahydro-pyran-2-carbonitrile