甲磺酸甲酯 、
NN'-5,9-dioxa-4,10-dioxotridecylane-1,13-bis-tetrahydropapaverine dioxalate 以
乙腈 为溶剂,
反应 48.0h,
以84%的产率得到mono(2,2'-((propane-1,3-diylbis(oxy))bis(4-oxobutane-4,1-diyl))bis(1-(3,4-dimethoxybenzyl)-6,7-dimethoxy-2-methyl-1,2,3,4-tetrahydroisoquinolin-2-ium)) monomethanesulfonate