4-[(6-oxocyclohexa-2,4-dien-1-ylidene)methyl]-3-phenyl-2H-1,2-oxazol-5-one

2-but-3-enoxybenzaldehyde

4-nitro-N'-[(E)-(6-oxocyclohexa-2,4-dien-1-ylidene)methyl]benzenesulfonohydrazide

Coumaraz-2-one

3-(4-chlorophenyl)-1-benzofuran