(4aS,7R,7aS)-(-)-7-methylhexahydrocyclopenta[c]pyran-3-one

(Diethoxy-phosphoryl)-acetic acid (1R,2R)-2-methyl-5-oxo-cyclopentylmethyl ester

citridone A

2-((1S,5R)-2-Isopropylidene-5-methyl-cyclopentyl)-[1,3]dioxolane