5-Cyano-4-(4-hydroxy-3-methoxy-phenyl)-2-phenyl-6-((2S,3R,4S,5S,6R)-3,4,5-triacetoxy-6-acetoxymethyl-tetrahydro-pyran-2-ylsulfanyl)-nicotinic acid ethyl ester 在
氨 作用下,
以
甲醇 为溶剂,
以80%的产率得到5-Cyano-4-(4-hydroxy-3-methoxy-phenyl)-2-phenyl-6-((2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-hydroxymethyl-tetrahydro-pyran-2-ylsulfanyl)-nicotinic acid ethyl ester