Acetic acid (E)-(3R,4S)-2-benzenesulfonyl-4-(tert-butyl-dimethyl-silanyloxy)-3,5-dimethyl-1-[(4S,5S,6R)-2,2,5-trimethyl-6-((Z)-2-methylsulfanyl-vinyl)-[1,3]dioxan-4-yl]-hept-5-enyl ester

6-((R)-3-{(4S,5S,6R)-6-[(1E,5E)-(3S,4S)-4-(tert-Butyl-dimethyl-silanyloxy)-3,5-dimethyl-hepta-1,5-dienyl]-2,2,5-trimethyl-[1,3]dioxan-4-yl}-2-hydroxy-propyl)-2,2-dimethyl-[1,3]dioxin-4-one