(R)-4-acetoxycyclopent-2-en-1-one

{(1R,2R,4R)-2-[(E)-(S)-6-(tert-Butyl-dimethyl-silanyloxy)-hept-1-enyl]-4-methoxymethoxy-cyclopentyl}-acetonitrile

Acetic acid (1S,4R)-4-(1-benzenesulfonyl-2-oxo-2-phenyl-ethyl)-1-phenylethynyl-cyclopent-2-enyl ester

(3aS,4R,6R,6aR)-4-{[tert-butyl(dimethyl)silyl]oxy}-3,3a,4,5,6,6a-hexahydro-6-hydroxy-6-methyl-2H-cyclopenta[b]furan-2-one

(1R,4S)-4-hydroxy-4-butyl-2-cyclopenten-1-yl acetate

(4S,7R)-4-{2-[(1S,4R,5S)-3,4-Bis-(tert-butyl-dimethyl-silanyloxy)-5-isopropyl-1-methyl-cyclopent-2-enyl]-ethyl}-7-(tert-butyl-diphenyl-silanyloxy)-4-methyl-4,5,6,7-tetrahydro-isobenzofuran

{(1S,2R,4R)-2-[(E)-(S)-6-(tert-Butyl-dimethyl-silanyloxy)-hept-1-enyl]-4-methoxymethoxy-cyclopentyl}-acetaldehyde

{(1R,2R)-2-[(E)-(S)-6-(tert-Butyl-dimethyl-silanyloxy)-hept-1-enyl]-4-oxo-cyclopentyl}-acetonitrile

2-((1R,4S)-4-Acetoxy-4-butyl-cyclopent-2-enyl)-3-oxo-butyric acid ethyl ester

ethyl (1'R,4'S)-2-(4'-hydroxy-4'-phenylethynyl-2'-cyclopenten-1'-yl)-2-nitroacetate

(E)-4-{(1R,2S,4S)-2-[(E)-(S)-6-(tert-Butyl-dimethyl-silanyloxy)-hept-1-enyl]-4-methoxymethoxy-cyclopentyl}-4-(tetrahydro-pyran-2-yloxy)-but-2-enoic acid ethyl ester

(2R,3R,5aS,7aS,8S,9R,10aR,10bS)-9-(tert-Butyl-dimethyl-silanyloxy)-3-(tert-butyl-diphenyl-silanyloxy)-8-isopropyl-2-methoxy-5a,7a-dimethyl-2,3,4,5,5a,6,7,7a,8,9,10a,10b-dodecahydro-1-oxa-benzo[cd]cyclopenta[h]azulen-10-one

(E)-4-{(1R,2S,4S)-2-[(E)-(S)-6-(tert-Butyl-dimethyl-silanyloxy)-hept-1-enyl]-4-methoxymethoxy-cyclopentyl}-4-hydroxy-but-2-enoic acid ethyl ester

(1R,4S)-4-hydroxy-4-phenylethynyl-2-cyclopenten-1-yl acetate

Acetic acid (1S,4R)-4-(1-benzenesulfonyl-2-oxo-2-phenyl-ethyl)-1-butyl-cyclopent-2-enyl ester