{(1S,5R)-5-[(E)-(S)-3-(tert-Butyl-dimethyl-silanyloxy)-oct-1-enyl]-cyclopent-2-enyl}-acetic acid ethyl ester

(-)-8-bromo-2-oxabicyclo<3.3.0>oct-6-en-3-one

3-(dimethyl-t-butylsilyloxy)-1-iodooct-1-ene