Furan
Cyclodeca[b]furan-2(3H)-one,3a,4,5,6,7,8,9,11a-octahydro-7,8-dihydroxy-10-methyl-3,6-bis(methylene)-,[3aS-(3aR*,7S*,8S*,10E,11aS*)]-
Azuleno[4,5-b]furan-2,9-dione,4,5,6,6a,7,8,9a,9b-octahydro-6a-hydroxy-3,6,9a-trimethyl-, [6S-(6a,6ab,9aa,9bb)]-
Azuleno[4,5-c]furan-1-ol,9-(1,5-dimethyl-1,4-hexadienyl)-1,3,5,6,6a,7,8,9,9a,9b-decahydro-, [1S-[1a,6ab,9b(Z),9aa,9bb]]-
3a,4a,5,7,8,8a,9,9a-Octahydro-5,8a-dimethyl-3-methylenenaphtho[2,3-b]furan-2,6(3H,4H)-dione