6-[2-((S)-3-Hydroxy-oct-1-ynyl)-5-oxo-cyclopentyloxy]-hexanoic acid methyl ester

6-[(1R,2R)-2-((S)-3-Hydroxy-oct-1-ynyl)-5-oxo-cyclopentyloxy]-hexanoic acid

6-[(1S,2S,5R)-2-((R)-3-tert-Butoxy-oct-1-ynyl)-5-hydroxy-cyclopentyloxy]-hexanoic acid tert-butyl ester

cis-2,3-Epoxy-1-(methoxymethoxy)cyclopentane

(1α,2β,5α)-6-oxabicyclo[3.1.0]hexan-2-ol