Synonyms: 17,18-Secoyohimban-16-carboxylicacid, 16,17-didehydro-9-hydroxy-17-methoxy-, methyl ester, (E)- (8CI);Corynan-16-carboxylic acid, 16,17-didehydro-9-hydroxy-17-methoxy-, methylester, (16E)-; Indolo[2,3-a]quinolizine, corynan-16-carboxylic acid deriv.;Gambirine