(1S,2R,4R,5R)-2-Hydroxymethyl-4-iodo-6-oxabicyclo<3.2.1>octan-7-one

(1R,3S,4R,5S)-5-[1,3]Dithian-2-ylidenemethyl-4-hydroxymethyl-cyclohexane-1,3-diol

(1R,2R,5R)-2-<(tert-Butyldimethylsilyloxy)methyl>-6-oxabicyclo<3.2.1>oct-3-en-7-one

(1S,2R,4S,5R,6R)-5-(tert-Butyl-dimethyl-silanyloxymethyl)-4-[1,3]dithian-2-ylidenemethyl-7-oxa-bicyclo[4.1.0]heptan-2-ol