2-(甲氨基)-5-硝基吡啶

2-氨基-5-硝基吡啶

methyl 4-(5-nitropyridin-2-yl)benzoate

5-硝基-2-甲基硫代吡啶

1-Boc-4-(5-硝基-2-吡啶基)哌嗪