甲磺酸甲酯 、
3-[1-(3,4-Dichloro-benzyl)-6,7-dimethoxy-3,4-dihydro-1H-isoquinolin-2-yl]-propionic acid 2-{3-[1-(3,4-dichloro-benzyl)-6,7-dimethoxy-3,4-dihydro-1H-isoquinolin-2-yl]-propionyloxy}-ethyl ester; compound with oxalic acid 以
乙腈 为溶剂,
反应 48.0h,
以70%的产率得到mono(2,2'-((ethane-1,2-diylbis(oxy))bis(3-oxopropane-3,1-diyl))bis(1-(3,4-dichlorobenzyl)-6,7-dimethoxy-2-methyl-1,2,3,4-tetrahydroisoquinolin-2-ium)) monomethanesulfonate