Showing structure for 2'-{[(5-hydroxy-3-methylpent-2-enoyl)oxy]methyl}-1',5'-dimethyl-8'-oxaspiro[oxirane-2,12'-tricyclo[7.2.1.0²,⁷]dodecan]-5'-en-11'-yl 6,7-dihydroxyocta-2,4-dienoate