对氨基苯甲酸

邻氨基苯甲酸

2-[N-(4-nitrophenoxycarbonyl)-N-phenyl]aminopyridine

吡啶

1-phenyl-2-oxo-1,2,3,4-tetrahydropyrido[1,2-a]pyrimidin-5-ium-4-olate