Synonyms: Corynan-16-carboxylicacid, 16,17-didehydro-10-hydroxy-17-methoxy-, methyl ester, (16E)-;Indolo[2,3-a]quinolizine-2-acetic acid,3-ethyl-1,2,3,4,6,7,12,12b-octahydro-9-hydroxy-a-(methoxymethylene)-, methyl ester, [2S-[2a(E),3b,12bb]]-; Isogambirine