Synonyms: Corynan;Corynanthean, dihydro- (6CI,7CI); 17,18-Secoyohimban; Dihydrocorynantheane;Indolo[2,3-a]quinolizine, 2,3-diethyl-1,2,3,4,6,7,12,12b-octahydro-, [2S-(2a,3b,12bb)]-; [2S-(2a,3b,12bb)]-2,3-Diethyl-1,2,3,4,6,7,12,12b-octahydroindolo[2,3-a]quinolizine