2,2'-联吡啶-4,4'-二甲酸甲酯

2-(dimethylamino)pyridine-4-carboxylic acid

7-甲基-2-(3-硝基苯基)咪唑并[1,2-a]吡啶

7-甲基咪唑并[1,2-a]吡啶-2-羧酸乙酯

ethyl N-(4-methylpyridin-2-yl)carbamate