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7H-Furo[3,2-g][1]benzopyran-7-one,
4-[[(2E)-5-[(4R)-5,5-dimethyl-4'-[[(2E)-3-methyl-5-(2,2,5,5-tetramethyl-1,
3-dioxolan-4-yl)-2-pentenyl]oxy]spiro[1,3-dioxolane-2,7'-[7H]furo[3,2-g][
1]benzopyran]-4-yl]-3-methyl-2-pentenyl]oxy]-