(2R,4S,5R)-5-hydroxy-2-phenyl-4-vinyl-1,3-dioxane

(2R,4S,5R)-5-hydroxy-2-phenyl-m-dioxane-4-ethanol

(1S,4R)-1-(2,2-dibromovinyl)-7,7-dimethylbicyclo<2.2.1>heptan-2-one

(1S,2R,4R)-1-(2,2-Dibromo-vinyl)-7,7-dimethyl-bicyclo[2.2.1]heptan-2-ol