N-(2-nitrophenyl)-2,2-diphenylacetamide

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

氯二苯基乙酸

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

2-bromo-2,2-diphenylacetic acid