((R,2E,4E,8Z)-6-((tert-butyldiphenylsilyl)oxy)-14-methoxy-14-oxotetradeca-2,4,8-trien-1-yl)triphenylphosphonium bromide

1-ethyl 20-methyl (5S,6Z,8E,10E,12R,14Z)-5-(benzoyloxy)-12-((tert-butyldiphenylsilyl)oxy)icosa-6,8,10,14-tetraenedioate