3-cyano-2-(3-cyano-6-methyl-2-methylthio-5-pyridylcarbonylmethylthio)-5-ethoxycarbonyl-6-hydroxypyridine 在
氢氧化钾 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 2.0h,
以79%的产率得到3-amino-2-(3-cyano-6-methyl-2-methylthio-5-pyridylcarbonyl)-5-ethoxycarbonyl-6-hydroxythieno[2,3-b]pyridine