2-hydroxy-3-[5-hydroxy-8-(4-{8'-hydroxy-6'-[1-hydroxy-3-(3-methyl-1,7-dioxaspiro[5.5]undec-2-yl)butyl]-7'-methylideneoctahydro-3h,3'h-spiro[furan-2,2'-pyrano[3,2-b]pyran]-5-yl}but-3-en-2-yl)-10-methyl-1,7-dioxaspiro[5.5]undec-10-en-2-yl]-2-methylpropanoic |
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