2-[(3-hydroxy-4-methoxyphenyl)methylidene]cyclopent-4-ene-1,3-dione

2-[(3,4,5-trimethoxyphenyl)methylidene]cyclopent-4-ene-1,3-dione

2-[(3-methoxy-4-phenylmethoxyphenyl)methylidene]cyclopent-4-ene-1,3-dione

2-[(Z)-3-phenylprop-2-enylidene]cyclopent-4-ene-1,3-dione

2,2-二羟基-(1h)-苯并[f]茚-1,3(2H-)-二酮水合物