Synonyms:
5,8-dimethoxy-1,2,3,4-tetrhydroisoquinoline-3-carboxylic acid ethyl ester ; ethyl 5,8-dimethoxy-1,2,3,4-tetrahydroisoquinoline-3-carboxylate ; 3-isoquinolinecarboxylic acid, 1,2,3,4-tetrahydro-5,8-dimethoxy-, ethyl ester ; ref dupl: 5,8-dimethoxy-1,2,3,4-tetrahydro-isoquinoline-3-carboxylic acid ethyl ester