[(3-氨基吡啶-2-基)亚甲基氨基]硫脲

3-hydroxy-2-(3-hydroxy-4-oxo-1H-pyridin-2-yl)-1H-pyridin-4-one

tert-butyl N-(2-chloropyridin-3-yl)-N-[(2-methylpropan-2-yl)oxycarbonyl]carbamate

2,2'-Bipyridine-3,3'-diamine

2-[(2-chloropyridin-3-yl)carbamoyl]benzoic acid