Spiro[4H-4,9a-methanocyclopent[d]oxocin-6(2H),3′-oxetane]-2,2′-dione, hexahydro-1,5,6a,7-tetrahydroxy-5,9-dimethyl-, (1R,3′S,4R,5R,6aR,7R,9R,9aS)-
Spiro[6H-4,9a-methanocyclopent[d]oxocin-6,3′-oxetane]-2,2′(1H)-dione, 4aβ,5,6a,7,8,9-hexahydro-1α,5β,6aβ,7β-tetrahydroxy-5,9α-dimethyl-
Spiro[6H-4,9a-methanocyclopent[d]oxocin-6,3′-oxetane]-2,2′(1H)-dione, hexahydro-1,5,6a,7-tetrahydroxy-5,9-dimethyl-, [1R-(1α,4β,5β,6β,6aβ,7β,9α,9aβ)]-
Anisatin
Spiro[6H-4,9a-methanocyclopent[d]oxocin-6,3′-oxetane]-2,2′(1H)-dione, hexahydro-1,5,6a,7-tetrahydroxy-5,9-dimethyl-, (1R,3′S,4R,5R,6aR,7R,9R,9aS)-
(1R,3′S,4R,5R,6aR,7R,9R,9aS)-Hexahydro-1,5,6a,7-tetrahydroxy-5,9-dimethylspiro[4H-4,9a-methanocyclopent[d]oxocin-6(2H),3′-oxetane]-2,2′-dione
(-)-Anisatin