2-(4-bromophenyl)-5-methyl-1,2-oxazol-3-one

N-(3-bromophenyl)-3-oxobutanamide

2,6-dimethyl-3-(5-phenyl-1,3,4-oxadiazol-2-yl)pyran-4-one

1-(5-phenyl-1,3,4-oxadiazol-2-yl)propan-2-one

N,N-dibenzyl-3-oxobutanamide