5-Cyano-4-(3-hydroxy-4-methoxy-phenyl)-2-phenyl-6-thioxo-1,6-dihydro-pyridine-3-carboxylic acid ethyl ester 在
氢氧化钾 、
氨 作用下,
以
甲醇 、
丙酮 为溶剂,
生成 5-Cyano-4-(3-hydroxy-4-methoxy-phenyl)-2-phenyl-6-((2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-hydroxymethyl-tetrahydro-pyran-2-ylsulfanyl)-nicotinic acid ethyl ester