7-Bromo-4,4-dimethyl-1H-benzo[d][1,3]oxazin-2(4H)-one
2-Phenyl-4H-benzo[d][1,3]oxazin-4-one
6-Nitro-1,4-dihydro-2H-benzo[d][1,3]oxazin-2-one
7-Methoxy-6-nitro-2H-benzo[b][1,4]oxazin-3(4H)-one
