1,1,3,3-tetraphenylpropan-2-one

3-methyl-1,1-diphenylbutan-2-one

N-naphthalen-2-yl-2,2-diphenylacetamide

3-amino-5,5-diphenyl-1,3-oxazolidine-2,4-dione

6-methyl-3,3-diphenyl-1-oxaspiro[3.5]nona-5,8-diene-2,7-dione