1-Benzoyl-4-hydroxy-5-(4'-antipyryl)-methylen-3-pyrrolin-3-carbonsaeuremethylester
5-[1-(1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)-meth-(Z)-ylidene]-4-hydroxy-2-oxo-2,5-dihydro-1H-pyrrole-3-carboxylic acid methyl ester
5-[1-(1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)-meth-(Z)-ylidene]-pyrrolidine-2,4-dione
2-Carbonylmethoxy-3-oxo-4-benzamido-5-(4'-antipyryl)-pent-4-en-saeuremethylester