(E)-(2S,3R,6R,7R,8S,10S)-11-(tert-Butyl-diphenyl-silanyloxy)-7,8-dimethoxy-2,4,6,10-tetramethyl-undec-4-ene-1,3-diol

[(3S,5S)-6-(tert-Butyl-diphenyl-silanyloxy)-3-methoxy-5-methyl-2-oxo-hexyl]-phosphonic acid dimethyl ester