2-OXABICYCLO[3.2.1]OCTAN-3-ONE, 6-[[(1,1-DIMETHYLETHYL)DIMETHYLSILYL]OXY]-8-[(1E,3R)-3-[[(1,1-DIMETHYLETHYL)DIMETHYLSILYL]OXY]-4-[3-(TRIFLUOROMETHYL)PHENOXY]-1-BUTEN-1-YL]-, (1R,5R,6S,8R)-