4-Methyl-6-phenyl-2-trimethylsilanylsulfanyl-nicotinonitrile 、
2,3,4,6-四乙酰氧基-alpha-D-吡喃葡萄糖溴化物 在
四氯化锡 作用下,
以
乙腈 为溶剂,
生成 Acetic acid (2R,3R,4S,5R,6R)-4,5-diacetoxy-6-acetoxymethyl-2-(3-cyano-4-methyl-6-phenyl-2-thioxo-2H-pyridin-1-yl)-tetrahydro-pyran-3-yl ester