(3R,3aR,4S,4aR,8aS,9aR)-4-Hydroxy-3-methyl-decahydro-naphtho[2,3-c]furan-1-one

((1R,3R,3aS,4S,4aR,8aS,9aR)-1-Methoxy-3-methyl-dodecahydro-naphtho[2,3-c]furan-4-yl)-methanol