(6CI,7CI,8CI)-6-氨基-吡啶甲酰胺

6-acetamidopyridine-2-carboxamide

5-溴-1,6-二氢-6-氧代吡啶-2-羧酸甲酯

methyl 6-[bis(tert-butoxycarbonyl)amino]pyridine-2-carboxylate

6-[[(1,1-二甲基乙氧基)羰基]氨基]-2吡啶羧酸甲酯