(R)-4-((5E,7E)-(S)-8-[1,3]Dithiolan-2-yl-1-methoxymethoxy-4,4-dimethyl-octa-5,7-dienyl)-2,2-dimethyl-[1,3]dioxolane

ethyl (2E,4E,9S,10R)-10,11-(isopropylidenedioxy)-9-(methoxymethoxy)-6,6-dimethyl-2,4-undecadienoate