(1R,8aR)-1-Furan-3-yl-8a-methyl-5-methylene-6-((1S,5R,6R)-6,9,9-trimethyl-3-oxo-2-oxa-bicyclo[3.3.1]non-7-en-6-yl)-1,5,6,7,8,8a-hexahydro-isochromen-3-one
[(1R,2R,5R)-2-((1R,8aR)-1-Furan-3-yl-8a-methyl-5-methylene-3-oxo-3,5,6,7,8,8a-hexahydro-1H-isochromen-6-yl)-5-hydroxy-2,6,6-trimethyl-cyclohex-3-enyl]-acetic acid isopropyl ester