6-[6-(tert-butyl-dimethyl-silanyloxy)-4-hydroxy-1,5-dimethyl-trideca-7,9,11-trienyl]-5-methyl-5,6-dihydro-2H-pyran-2-ol

6-[6-(tert-butyl-dimethyl-silanyloxy)-4-hydroxy-1,5-dimethyl-trideca-7,9,11-trienyl]-5-methyl-5,6-dihydro-pyran-2-one