Showing structure for 2',5'-bis(hydroxymethyl)-1'-methyl-8'-oxaspiro[oxirane-2,12'-tricyclo[7.2.1.0²,⁷]dodecan]-5'-en-11'-yl 7-hydroxy-6-[2-(5-oxo-2h-furan-3-yl)ethoxy]octa-2,4-dienoate