4-oxo-4-[2-[(4-oxocyclohexa-2,5-dien-1-ylidene)methyl]hydrazinyl]-N-(1,3-thiazol-2-yl)butanamide

3-[(二甲氨基)甲基]-4-羟基苯甲醛

4-[2-(1,3-dihydrobenzimidazol-2-ylidene)ethylidene]cyclohexa-2,5-dien-1-one

4-甲酰基苯基2-甲基丙酸酯

2-[(4-hydroxyphenyl)methylidene]-1-benzofuran-3-one