Pyran
(1aR)-1aβ,2,2a,4aβ,4bβ,6,9b,9cβ-Octahydro-2α-hydroxy-2aβ,9bα-dimethyl-3H,8H-furo[2,3,4:4,5]oxireno[7,8]naphtho[2,1-c]pyran-3,8-dione
(1aR)-1aβ,2a,4aβ,4bβ,5,9cβ-Hexahydro-2α-hydroxy-2aβ,9bα-dimethyl-6-ethyl-2H,3H-furo[2,3,4:4,5]oxireno[7,8]naphtho[2,1-c]pyran-3,8(9bH)-dione
(1aR)-1aβ,2a,4aβ,4bβ,6,8,9b,9cβ-Octahydro-2β-hydroxy-2aβ,9bα-dimethyl-6β-isopropyl-2H,3H-furo[2,3,4:4,5]oxireno[7,8]naphtho[2,1-c]pyran-3,8-dione
(1aR,10aβ,10bα)-2β-Isopropyl-5bα,8aβ-dimethyl-6,7,8,8bβ,10a,10b-hexahydro-4H,9H-furo[2,3,4:4,5]oxireno[2,3]naphtho[2,1-c]pyran-4,9-dione
(1aR,10aβ,10bα)-2β-Isopropyl-5bα,8aβ-dimethyl-8bβ,9,10a,10b-tetrahydro-4H,6H-furo[2,3,4:4,5]oxireno[2,3]naphtho[2,1-c]pyran-4,9-dione
(1aR,4E,7aS,13S,13aS,13bR)-1,1a,2,3,6,7,7a,13,13a,13b-Decahydro-10,12-dihydroxy-1,1,4,7a-tetramethyl-13-(2-methylpropyl)benzo[b]cyclopropa[9,10]cyclodeca[1,2-e]pyran-9,11-dicarbaldehyde
(1aS)-1aα,2a,4aβ,4bβ,6,8,9b,9cα-Octahydro-2β-hydroxy-2aβ,9bα-dimethyl-6β-[1-(methoxycarbonyl)ethyl]-2H,3H-furo[2,3,4:4,5]oxireno[7,8]naphtho[2,1-c]pyran-3,8-dione
(1R)-1,2,3,3a,5aβ,6,10b,10cβ-Octahydro-1,6α-dihydroxy-3aβ,10bα-dimethyl-7-isopropyl-4H,9H-furo[2,3,4:4,5]naphtho[2,1-c]pyran-4,9-dione