英文别名Ethyl (41S,13aR)-13a-ethyl-2,3,41,5,6,13a-hexahydro-1h-indolo[3,2,1-de]pyrido[3,2,1-ij][1,5]naphthyridine-12-carboxylate; (41S,13aR)-ethyl 13a-ethyl-2,3,41,5,6,13a-hexahydro-1H-indolo[3,2,1-de]pyrido[3,2,1-ij][1,5]naphthyridine-12-carboxylate; (3S,16R)-ethyl apovincaminate; Vinpocetine Impurity E; Vinpocetine trans-(3S,16R) Isomer; ethyl (41S,13aR)-13a-ethyl-2,3,41,5,6,13a-hexahydro-1H-indolo[3,2,1-de]pyrido[3,2,1-ij][1,5]phthyridine-12-carboxylate; Vinpocetine-5 
