trithiocarbonic acid diphenacyl ester

2-phenylnaphthalen-1-ol

1-(2-methyl-4,5-diphenyl-cyclopent-1-enyl)-ethanone

1,4,5-tribenzoyl-2-phenyl-cyclopenta-1,3-diene

6-benzylidene-5-isopropenyl-2-methyl-cyclohex-2-enone