Antirhine

(2S,βR)-β-Vinyl-1,2,3,4,6,7,12,12bβ-octahydroindolo[2,3-a]quinolizine-2-ethanol

(betaR,2S,12bS)-beta-Ethenyl-1,2,3,4,6,7,12,12b-octahydroindolo[2,3-a]quinolizine-2-ethanol