1a-(2,2-diphenylethyl)-1a,7a-dihydronaphtho[2,3-b]oxirene-2,7-dione

benzoic acid,prop-1-en-2-ol

N,N-二甲基甲酰胺

3,3-bis(4-methoxyphenyl)-5,5-diphenyl-1,2-dioxolane

甲基锂