A 2-pyridinecarboxamide derivative of the formula:
wherein R' is hydrogen, lower alkyl, lower alkoxy, halogen, lower alkyl-thio or nitro and is in the 3rd-, 4th- or 5th- position of the pyridyl group, and R2 is hydrogen, lower alkyl, lower alkoxy, phenoxy, phenyl-lower alkyl, phenyl-lower alkenyl, or halogen. Said 2-pyridinecarboxamide derivative (I) or a pharmaceutically acceptable salt thereof is useful as an anti-allergic agent.
式中的 2-
吡啶甲酰胺衍
生物:
其中 R' 为氢、低级烷基、低级烷氧基、卤素、低级烷
硫基或硝基,且位于
吡啶基的第 3 位、第 4 位或第 5 位;R2 为氢、低级烷基、低级烷氧基、苯氧基、苯基-低级烷基、苯基-低级烯基或卤素。所述 2-
吡啶甲酰胺衍
生物(I)或其药学上可接受的盐可用作抗过敏剂。