Acetic acid (Z)-3-[(4R,5S,6S)-6-((2E,4E,6E)-(R)-10-hydroxy-8-methoxy-deca-2,4,6-trienyl)-2,2,5-trimethyl-[1,3]dioxan-4-yl]-but-2-enyl ester

(Z)-3-{(4R,5S,6S)-6-[(2E,4E,6E)-(R)-10-(tert-Butyl-dimethyl-silanyloxy)-8-methoxy-deca-2,4,6-trienyl]-2,2,5-trimethyl-[1,3]dioxan-4-yl}-but-2-en-1-ol