20379-19-5

(2R,4aR,6aR,7S,7aS,8aS,9S,9aS,9bS)-2-(3-Furanyl)dodecahydro-7-hydroxy-6a,9b-dimethyl-9,7-(epoxymethano)-4H-oxireno[6,7]naphtho[2,1-c]pyran-4,11-dione