(E)-(S)-5-(tert-Butyl-dimethyl-silanyloxy)-7-[(1R,2S,3R,5S)-5-(tert-butyl-dimethyl-silanyloxy)-2-(2-oxo-ethyl)-3-triethylsilanyloxy-cyclopentyl]-hept-6-enoic acid methyl ester

(E)-(S)-5-(tert-Butyl-dimethyl-silanyloxy)-7-[(1R,2S,3R,5S)-5-(tert-butyl-dimethyl-silanyloxy)-2-((2Z,5Z)-octa-2,5-dienyl)-3-triethylsilanyloxy-cyclopentyl]-hept-6-enoic acid methyl ester

(E)-(S)-5-(tert-Butyl-dimethyl-silanyloxy)-7-[(1R,2S,3R,5S)-5-(tert-butyl-dimethyl-silanyloxy)-3-triethylsilanyloxy-2-(2-triethylsilanyloxy-ethyl)-cyclopentyl]-hept-6-enoic acid methyl ester

(3aS,4R,5S,6aR)-hexahydro-5-(tert-butyldimethylsilyl)oxy-4-(2-hydroxy-ethyl)-cyclopenta[b]furan-2-one

(3aS,4R,5S,6aR)-hexahydro-5-(tert-butyldimethylsilyl)oxy-4-(2-(2-nitrophenylselanyl)-ethyl)-cyclopenta[b]furan-2-one