Showing structure for 1-[4-(acetyloxy)-5-methyl-8-phenyloct-7-en-1-yl]-4,7-dihydroxy-3-(methoxycarbonyl)-6-[(9-phenylnon-8-enoyl)oxy]-2,8-dioxabicyclo[3.2.1]octane-4,5-dicarboxylic acid