(1S,5S,6S,8R,9R)-5,9-dimethyl-2-oxobicyclo<4.3.0>nonan-8-yl benzoate

(1S,5S,6S,8S,9R)-5,9-dimethyl-2-oxobicyclo<4.3.0>nonan-8-yl benzoate

(3'R,3'aS,7'R,7'aS)-5',6'-Dihydroxy-3',7'-dimethyl-hexahydro-spiro[[1,3]dioxolane-2,2'-inden]-4'-one

(1S,5S)-5-((R)-2-Hydroxy-1-methyl-ethyl)-2-methyl-cyclopent-2-enecarboxylic acid ethyl ester

(6R,7S,8S)-8-((R)-2-Hydroxy-1-methyl-ethyl)-6-methyl-1,4-dioxa-spiro[4.4]nonane-7-carboxylic acid