(2Ξ,3SR)-2-Methyl-3-vinylcyclopentan-1-on

2-[(6ω,7S)-6-Methyl-1,4-dioxaspiro[4,4]non-7-yl]ethanol

(R)-2-Vinylcyclopropan-1,1-dicarbonsaeure

[(1SR,2Ξ)-2-Methyl-3-oxocyclopentyl]essigsaeure-methylester

(R)-(+)-2-Vinyl-1,1-cyclopropandicarbonsaeure-dimethylester