5-(2-Amino-4,5-dimethoxy-phenyl)-6-ethoxy-2-(2,3,4,5-tetrafluoro-phenyl)-nicotinic acid ethyl ester 在
盐酸 作用下,
以
1,4-二氧六环 为溶剂,
反应 2.0h,
生成 6,7-Dimethoxy-2-(2,3,4,5-tetrafluoro-phenyl)-9H-pyrido[2,3-b]indole-3-carboxylic acid 、 5-(2-Amino-4,5-dimethoxy-phenyl)-6-hydroxy-2-(2,3,4,5-tetrafluoro-phenyl)-nicotinic acid 、 6,7-Dimethoxy-2-(2,3,4,5-tetrafluoro-phenyl)-9H-pyrido[2,3-b]indole-3-carboxylic acid ethyl ester