(2E,4E)-5-(4-((tert-butyldimethylsilyl)oxy)-2-((S,E)-6-((tert-butyldimethylsilyl)oxy)-5-hydroxy-3-methylhex-2-en-1-yl)-3-methylphenyl)penta-2,4-dienoic acid

(S,1E,3E,9E)-13-((tert-butyldimethylsilyl)oxy)-7-(((tert-butyldimethylsilyl)oxy)methyl)-9,12-dimethyl-8,11-dihydrobenzo[g][1]oxacyclotridecin-5(7H)-one