3537-14-2
5-硝基吡啶-2,3-二胺
→
1186223-80-2
2-methyl-1H-imidazo[4,5-b]pyridin-6-amine
3073-30-1
3,5-二硝基-2-氨基吡啶
79781-75-2
2-methyl-6-nitro-1H-imidazo[4,5-b]pyridine