1,2,3,4,4aβ,5,6,7,8,8a-decahydro-1,3-dihydroxy-8aβ-methyl-3-<2-(4-methoxybenzocyclobutenyl)>-6α-<(tetrahydropyranyl)oxy>naphthalene

(-)-(4aR,6R,8aS)-6α-acetoxy-1,2,3,4,4aβ,5,6,7,8,8a-decahydro-8aβ-methyl-1-oxonaphthalene