7-Bromo-1H-pyrido[2,3-b][1,4]oxazin-2(3H)-one
2,3-Dihydro-1H-pyrido[2,3-b][1,4]oxazine
6-Bromo-2,3-dihydro-1H-pyrido[2,3-b][1,4]oxazine
5-Chloro-2,3-dihydro-1H-pyrido[3,4-b][1,4]oxazine
5-Chloro-3,4-dihydro-2H-pyrido[4,3-b][1,4]oxazine
7-Bromo-2,3-dihydro-1H-pyrido[2,3-b][1,4]oxazine
7-Methyl-1H,2H,3H-pyrido[2,3-b][1,4]oxazine
