N-甲基哌啶 、
2-(4-bromomethylphenylacetyl)-7-(4-methylphenyl)-1,2,3,4-tetrahydroisoquinoline 在
氮气 、
乙酸乙酯 、
乙醇 、
1-methyl-4-1-(4-((7-(4-methylphenyl)-1,2,3,4-tetrahydroisoquinolin-2-yl)carbonylmethyl)benzyl)piperidium bromide 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 16.0h,
以to obtain 1-methyl-1-(4-((7-(4-methylphenyl)-1,2,3,4-tetrahydroisoquinolin-2-yl)carbonylmethyl)benzyl)piperidinium bromide (compound 31) (0.24 g) as a colorless amorphous substance的产率得到1-methyl-4-1-(4-((7-(4-methylphenyl)-1,2,3,4-tetrahydroisoquinolin-2-yl)carbonylmethyl)benzyl)piperidium bromide