(5S,6S)-6-[(1E,3R,4R,6R,7Z)-6-hydroxy-3-(2-hydroxyethyl)-8-iodo-3,4-isopropylidenedioxy-1,7-octadienyl]-5-ethyl-5,6-dihydro-2H-pyran-2-one

(5S,6S)-6-((E)-2-((4R)-5-((R,Z)-2-((tert-butyldimethylsilyl)oxy)-4-iodobut-3-en-1-yl)-4-(2-((tert-butyldiphenylsilyl)oxy)ethyl)-2,2-dimethyl-1,3-dioxolan-4-yl)vinyl)-5-ethyl-5,6-dihydro-2H-pyran-2-one