IUPAC:(1R,2S,11S,14R,15R,17S,18R,20R)-18-(acetyloxy)-1,7,11,15,19,19-hexamethyl-5-oxo-8,10-dioxapentacyclo[12.8.0.0^{2,11}.0^{4,9}.0^{15,20}]docosa-4(9),6-dien-17-yl acetate
IUPAC:(1R,2S,11S,14R,15R,17S,18R,20R)-18-(acetyloxy)-1,7,11,15,19,19-hexamethyl-5-oxo-8,10-dioxapentacyclo[12.8.0.0^{2,11}.0^{4,9}.0^{15,20}]docosa-4(9),6-dien-17-yl acetate