(2E*,4R*,5R*,6R*,7S*,9Z)-5,7-bis((tert-butyldimethylsilyl)oxy)-11,11-dimethoxy-2,4,6,10-tetramethyl-8-oxo-2,9-dodecadienyl acetate

methyl <2E,4E,6S*<1R*-<1β,2α,4α,6β,7α,8β>>>-4-methyl-6-(1,2,7-trimethyl-5-oxo-3,9,10-trioxatricyclo<4.3.1.0(2,4)>dec-8-yl)hepta-2,4-dienoate

(1R,3S,4S,5R)-3-((S)-2-Benzyloxy-1-methyl-ethyl)-1,4,8-trimethyl-2,9-dioxa-bicyclo[3.3.1]non-7-en-6-one