[(2R,3S,4S,5R,6R)-3,4,5-triacetyloxy-6-[6-(4-chlorophenyl)-3-cyano-4-phenyl-2-sulfanylidenepyridin-1-yl]oxan-2-yl]methyl acetate 在
氨 作用下,
以
甲醇 为溶剂,
以84%的产率得到6-(4-Chloro-phenyl)-4-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