4-hydrazinyl-2-methylimidazo[1,2-a:5,4-b']dipyridine

3-氨基咪唑并[1,2-a]吡啶-2-甲醛

丙酮

3-氨基咪唑并(1,2-a)吡啶

2-hydroxymethyl-3-nitroimidazo[1,2-a]pyridine