6-Benzoyl-7-hydroxy-5H-dibenzo[a,c]cycloheptatrien-5-one
6-benzoyl-7-morpholin-4-yl-dibenzo[a,c]cyclohepten-5-one
9,10-phenanthrenequinone
7-Amino-5-oxo-5H-dibenzo
6-[2,3-Bis-(3,5-di-tert-butyl-4-hydroxy-phenyl)-cycloprop-2-enylidene]-dibenzo[a,c]cycloheptene-5,7-dione