N-[4-(4-benzylpiperidinomethyl)phenyl]-7-(4-methylphenyl)-3,4-dihydronaphthalene-2-carboxamide 、
碘甲烷 、
乙酸乙酯 在
4-benzyl-1-methyl-1-[4-[7-(4-methylphenyl)-3,4-dihydronaphthalene-2-carboxamido]benzyl]piperidinium iodide 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 23.0h,
以to give 4-benzyl-1-methyl-1-[4-[7—(4-methylphenyl)-3,4-dihydronaphthalene-2-carboxamido]benzyl]-piperidinium iodide (Compound 36) (141 mg, ratio of isomers=19:81) as colorless crystals的产率得到4-benzyl-1-methyl-1-[4-[7-(4-methylphenyl)-3,4-dihydronaphthalene-2-carboxamido]benzyl]piperidinium iodide