2-三氧代-2,3-二氢吡啶并[2,3-d]嘧啶-4(1h)-酮

1-(2-氨基-3-吡啶基)-2-溴乙烷酮

4-chloro-3-(piperidine-1-carbonyl)-1,8-naphthyridin-2(1H)-one

2-nitraminonicotinic acid