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

(1S,2R,4R,5R)-4-Iodo-7-oxo-6-oxabicyclo<3.2.1>octane-2-carboxylic Acid

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

(4S,5S)-4-Hydroxymethyl-5-methyl-2-cyclohexen-1-one

(4S,5S)-4-<(tert-Butyldimethylsilyloxy)methyl>-5-methyl-2-cyclohexen-1-one