阿曲库铵中间体二氢碱盐酸盐6,7-dimethoxy-1-(3,4-dimethoxybenzyl)-3,4-dihydroisoquinolineHydrochloride--四氢碱盐酸盐6,7-dimethoxy-1-(3,4-dimethoxybenzyl)-1,2,3,4-dihydroisoquinolineHydrochloride--缩合物草酸盐N',N'-(4,10-dioxa-3,11-dioxo-tridecanylene)-1,13-bis(1,2,3,4-tetrahydroisoquinoline)-bioxalate)