9-amino-6-methylpyrido[2,3-b][1,5]benzoxazepin-5-one

2-hydroxy-7-nitro-4H-1,4-benzoxazin-3-one

1,2,4-三氯-7-硝基-3H-吩恶嗪-3-酮

6-氨基苯并恶唑

6-硝基苯并恶唑