18374-18-0

3β-vincamine Vinpocetine-13 Vincamine Impurity 8 Vinpocetine Impurity M (3R,14S,16S)-Vincamine Vinpocetine Impurity 13 (41R,12S,13aS)-methyl 13a-ethyl-12-hydroxy Eburnamenine-14-carboxylic acid, 14,15-dihydro-14-hydroxy-, methyl ester, (14β,16α) methyl (41R,12S,13aS)-13a-ethyl-12-hydroxy-2,3,41,5,6,12,13,13a-octahydro-1H-indolo[3,2,1-de]pyrido[3,2,1-ij][1,5]phthyridine-12-carboxylate methyl (41R,12S,13aS)-13a-ethyl-12-hydroxy-2,3,41,5,6,12,13,13a-octahydro-1H-indolo[3,2,1-de]pyrido[3,2,1-ij][1,5]naphthyridine-12-carboxylate (41R,12S,13aS)-methyl 13a-ethyl-12-hydroxy-2,3,41,5,6,12,13,13a-octahydro-1H-indolo[3,2,1-de]pyrido[3,2,1-ij][1,5]naphthyridine-12-carboxylate