4-[(6-oxocyclohexa-2,4-dien-1-ylidene)methylamino]butanoic acid

1-ethynyl-2-(methoxymethoxy)benzene

1-N',2-N'-bis[[(E)-(6-oxocyclohexa-2,4-dien-1-ylidene)methyl]amino]ethanediimidamide

6-methoxy-2-(2-methoxyphenyl)-2,3-dihydrochromen-4-one

[(carbamoylamino)-(2-hydroxyphenyl)methyl]urea