(R)-Deplancheine

(3E)-3-Ethylidene-1,2,3,4,6,7,12,12bα-octahydroindolo[2,3-a]quinolizine

1,2,3,4,6,7,12,12bα-Octahydro-3-[(E)-ethylidene]indolo[2,3-a]quinolizine

(12bR)-1,2,3,4,6,7,12,12b-Octahydro-3-[(E)-ethylidene]indolo[2,3-a]quinolizine