The molecule is a monoterpenoid indole alkaloid with formula C22H24N2O4, originallly isolated from the seeds of Strychnos nux-vomica. It has a role as a plant metabolite. It is a delta-lactam, a monoterpenoid indole alkaloid, an organic heteroheptacyclic compound, a member of phenols and an aromatic ether. It derives from a strychnine.
(4aR,5aS,8aR,13aS,15aS,15bR)-10-hydroxy-11-methoxy-4a,5,5a,7,8,13a,15,15a,15b,16-decahydro-2H-4,6-methanoindolo[3,2,1-ij]oxepino[2,3,4-de]pyrrolo[2,3-h]quinolin-14-one