IUPAC:(1S,12R,13R,14R)-18,19-dimethoxy-13,14-dimethyl-20-oxo-3,6,8-trioxapentacyclo[9.9.1.0^{1,16}.0^{4,21}.0^{5,9}]henicosa-4,9,11(21),16,18-pentaen-12-yl (2Z)-2-methylbut-2-enoate
IUPAC:(1S,12R,13R,14R)-18,19-dimethoxy-13,14-dimethyl-20-oxo-3,6,8-trioxapentacyclo[9.9.1.0^{1,16}.0^{4,21}.0^{5,9}]henicosa-4,9,11(21),16,18-pentaen-12-yl (2Z)-2-methylbut-2-enoate