methyl (1R,2S,3R)-3-tert-butyldimethylsilyloxy-2-(5-hydroxy-cis-2-pentenyl)-1-cyclopentaneacetate

(1R,5R,8S)-8-(1',3'-dithianyl-2')methyl-2-oxabicyclo[3,2,1]octan-3-one

(1R,5R,8S)-8-(5-2'-tetrahydropyranyloxy-cis-2-pentenyl)-2-oxabicyclo<3.2.1>octan-3-one

2-((1R,2S,3R)-3-hydroxy-2-((Z)-5-(tetrahydro-2H-pyran-2-yloxy)pent-2-enyl)cyclopentyl)ethanoic acid

methyl (1R,2S,3R)-3-hydroxy-2-(5-2'-tetrahydropyranyloxy-cis-2-pentenyl)-1-cyclopentaneacetate