azeto,pyrano,oxazine,oxazin,[1,3]oxazine
[1,3]oxazine
1192355-14-8tert-Butyl7-amino-4-oxo-3,4-dihydrospiro[benzo[e][1,3]oxazine-2,4'-piperidine]-1'-carboxylate
89752-31-87H-Pyrazolo[1,5-c][1,3]oxazine,3,3a-dihydro-7-(4-methoxyphenyl)-7-methyl-2,3a,5-triphenyl-
116537-79-21H,7H,11H-Cyclopenta[7,8]cyclopropa[4a,4b]phenanthro[2,1-d][1,3]oxazine,6'H-9,19-cyclopregna-3,17(20)-dieno[3,4-d][1,3]oxazin-16-one deriv.