2-硫氧代-1,2-二氢吡啶-3-羧酸甲酯

2-(butylamino)pyridine-3-carboxylic acid

四唑并[1,5-a]吡啶-8-羧酸

3-(2-chlorophenyl)-2-methylpyrido[2,3-d]pyrimidin-4-one

2-[(2-chloropyridine-3-carbonyl)amino]acetic acid