(2R,3R,4R,5R,6S)-3-(benzyloxy)-5-((tert-butyldimethylsilyl)oxy)-2,4,6-trimethyloctan-1-ol

(1R,2R,3r,4S,5S)-3-(benzyloxy)-2,4-dimethyl-8-oxa-bicyclo[3.2.1]oct-6-ene

endo-3-benzyloxy-endo,endo-2,4-dimethyl-exo-6-hydroxy-8-oxabicyclo[3.2.1]octane

(1S,5R,6S,7S,8S)-7-Benzyloxy-6,8-dimethyl-2,9-dioxa-bicyclo[3.3.1]nonan-3-one

endo-3-benzyloxy-endo,endo-2,4-dimethyl-8-oxabicyclo-[3.2.1]-octan-6-one