(3aS,6R,7aS)-3a,4,5,6,7,7a-hexahydro-3a-methyl-6-(1-methyl-1-hydroxyethyl)-1H-inden-1-one

(3aS,6R,7aR)-3a,4,5,6,7,7a-hexahydro-7a-hydroxy-3a-methyl-6-(1-methyl-1-hydroxyethyl)-1H-inden-1-one

(3aR,5aS,8R,9aR)-3a-Hydroxy-8-(1-hydroxy-1-methyl-ethyl)-5a-methyl-3a,5a,6,7,8,9-hexahydro-3H-indeno[7a,1-b]furan-2-one

(4R,5S,5aS,8R,9aR)-2,4,5,5a,6,7,8,9-octahydro-4,5-dihydroxy-5a-methyl-8-(1-methyl-1-acetoxyethyl)-1H-indeno<7a,1-b>-2,5-dihydrofuran-2-one

(3aR,4S,5S,5aS,8R,9aR)-perhydro-3a-acetoxy-4,5-dihydroxy-5a-methyl-8-(1-methyl-1-acetoxyethyl)indeno<7a,1-b>tetrahydrofuran-2-one