(1S,2R,5R,6S,7E)-6-<(2R,4S,5S)-5-(benzyloxy)-4-<2-(tert-butyldimethylsiloxy)ethyl>-2-phenyl-m-dioxan-5-yl>-2-(methoxymethoxy)-5,11,11-trimethylbicyclo<6.2.1>undec-7-ene-3,4-dione

(2R,4S)-4-<2-(tert-butyldimethylsiloxy)ethyl>-2-phenyl-m-dioxan-5-one

(1S,4R)-1-<(E)-2-<(2R,4S,5S)-4-<2-(tert-butyldimethylsiloxy)ethyl>-5-hydroxy-2-phenyl-m-dioxan-5-yl>vinyl>-7,7-dimethylbicyclo<2.2.1>heptan-2-one

(1S,4R)-1-<(E)-2-<(2R,4S,5S)-5-(benzyloxy)-4-<2-(tert-butyldimethylsiloxy)ethyl>-2-phenyl-m-dioxan-5-yl>vinyl>-7,7-dimethylbicyclo<2.2.1>heptan-2-one

(2R,4S,5S)-5-(benzyloxy)-4-<(1E,3S,4R,7R,8S)-7-(methoxymethoxy)-4,11,11-trimethyl-5,6-dioxobicyclo-<6.2.1>undec-1-en-3-yl>-2-phenyl-m-dioxane-4-acetaldehyde