2,2-Dimethyl-propionic acid (E)-(S)-1-((4S,5S)-5-hydroxymethyl-2,2-dimethyl-[1,3]dioxolan-4-yl)-penta-2,4-dienyl ester

2,2-Dimethyl-propionic acid (E)-(S)-1-[(4S,5S)-5-(tert-butyl-diphenyl-silanyloxymethyl)-2,2-dimethyl-[1,3]dioxolan-4-yl]-penta-2,4-dienyl ester