1-(2-iodoethyl)-4-methyl-2,6,7-trioxabicyclo<2.2.2>octane

1-(2-triphenylphosphoniumethyl)-4-methyl-2,6,7-trioxabicyclo<2.2.2>octane iodide

(3aR,4S,6aS)-4-(tert-Butyl-diphenyl-silanyloxymethyl)-tetrahydro-cyclopenta[b]furan-2,5-dione

Acetic acid (3aR,4S,5R,6aS)-4-(tert-butyl-diphenyl-silanyloxymethyl)-2-oxo-hexahydro-cyclopenta[b]furan-5-yl ester