trans-1,3,4,5,5a,6,7,8,9,9a-decahydro-5-oxo-6,6,9a-trimethyl-1,3-diacetoxynaphtho<1,2-c>furan

(5aα,9aβ,9bα)-1,3,5,5a,6,7,8,9,9a,9b-decahydro-5-oxo-6,6,9a-trimethyl-9b-hydroxy-1,3-dimethoxynaphtho<1,2-c>furan

(5S,5aR,9aR,9bR)-1,3-Dimethoxy-6,6,9a-trimethyl-3,5,5a,6,7,8,9,9a-octahydro-naphtho[1,2-c]furan-5,9b-diol

trans-4,5,5a,6,7,8,9,9a-octahydro-5-oxo-6,6,9a-trimethyl-naphtho<1,2-c>furan

(1S,4S,4aS,8aS)-1,4-dihydroxy-5,5,8a-trimethyl-4a,6,7,8-tetrahydro-4H-naphthalene-1,2-dicarbaldehyde