(2S,3R,6S,8R,9S)-2-Benzyloxymethyl-3-butyl-8-[2-(tert-butyl-dimethyl-silanyloxy)-ethyl]-9-methyl-1,7-dioxa-spiro[5.5]undecan-3-ol

tert-Butyl-dimethyl-[2-((2R,3S)-3-methyl-6-methylene-tetrahydro-pyran-2-yl)-ethoxy]-silane