IUPAC:2',5'-bis(hydroxymethyl)-1'-methyl-8'-oxaspiro[oxirane-2,12'-tricyclo[7.2.1.0^{2,7}]dodecan]-5'-en-11'-yl 7-hydroxy-6-[2-(5-oxo-2,5-dihydrofuran-3-yl)ethoxy]octa-2,4-dienoate
IUPAC:2',5'-bis(hydroxymethyl)-1'-methyl-8'-oxaspiro[oxirane-2,12'-tricyclo[7.2.1.0^{2,7}]dodecan]-5'-en-11'-yl 7-hydroxy-6-[2-(5-oxo-2,5-dihydrofuran-3-yl)ethoxy]octa-2,4-dienoate