(6,7-dimethoxy-3,4-dihydro-2H-isoquinoline-1-ylidene)acetic acid ethyl ester

3-[[2-(3,4-二甲氧基苯基)乙基]氨基]-3-氧代-丙酸乙酯

3,4-二甲氧基苯乙胺

6,7-二甲氧基-3,4-二氢异喹啉

丙二酸单乙酯