2-环己烯-1-酮

2,5-dimethyl-2,5-epoxybenzo[e][1,2,4,7]tetraoxocine

4-(2-hydroxybenzoyl)-6-methylpyridine-2-carboxylic acid

Ethyl 4-(2-hydroxybenzoyl)-6-(4-oxo-4H-1-benzopyran-3-yl)pyridine-2-carboxylate

1-hydroxy-1-(4-hydroxy-3-methoxy-phenyl)-2-(2,6-dimethoxyphenoxy)ethane