annotinin

(1S,4α,4aα,9aα,10aα,12R)-4a,5,6,7,9a,10a-Hexahydro-12-methyl-10bβ,10cβ-ethano-1α,4α-methano-4H,9H-oxepino[3,4,5-ij]oxireno[b]quinolizin-2(1H)-one