tert-Butyl-{(4E,8E)-(2R,6R,10R,11R)-11-[4-(4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,11-heptadecafluoro-undecyloxy)-benzyloxy]-2,6,10-trimethyl-dodeca-4,8-dienyloxy}-dimethyl-silane