7-[2-(N-benzyl-N-methylamino)ethoxy]-2,2-dimethyl-4-(2-naphthyl)-2H-chromene 、 7-(2-Diethylaminoethoxy)-2,2-dimethyl-4-(2-naphthyl)-2H-chromene 生成 2,2-dimethyl-7-(2-methylaminoethoxy)-4-(2-naphthyl)chroman 、 7-(2-diethylaminoethoxy)-2,2-dimethyl-4-(2-naphthyl)chroman