pyrimido,oxazine,oxazin,[1,4]oxazin,[1,4]oxazine
[1,4]oxazin
105124-53-6(4aS,11bS)-1,2,3,4a,5,6,7,11b-octahydrobenzo[3,4]cyclohepta[1,2-b][1,4]oxazine [1,4]oxazine
105124-46-7(4aS,11bS)-10-methyl-2,3,4,4a,5,6,7,11b-octahydrobenzo[6,7]cyclohepta[1,2-b][1,4]oxazine