[(2R,3S,4S,5R,6R)-3,4,5-triacetyloxy-6-[3-cyano-4-(4-methoxyphenyl)-6-phenyl-2-sulfanylidenepyridin-1-yl]oxan-2-yl]methyl acetate 在
氨 作用下,
以
甲醇 为溶剂,
以81%的产率得到4-(4-Methoxy-phenyl)-6-phenyl-2-thioxo-1-((2R,3R,4S,5R,6R)-3,4,5-trihydroxy-6-hydroxymethyl-tetrahydro-pyran-2-yl)-1,2-dihydro-pyridine-3-carbonitrile