3,3-diphenylcyclobutan-1-one

tert-butyl 2,2-diphenylacetate

N-(4-methylphenyl)-2,2-diphenylacetamide

2-benzhydryl-1H-benzimidazole

(1-butylpiperidin-1-ium-4-yl) 2,2-diphenylacetate,chloride