IUPAC:(2S,8'R,10'S)-3',4',5',19'-tetramethoxy-10'-methyl-15',17'-dioxaspiro[oxirane-2,9'-tetracyclo[10.7.0.0^{2,7}.0^{14,18}]nonadecane]-1'(19'),2'(7'),3',5',12',14'(18')-hexaen-8'-yl (2E)-2-methylbut-2-enoate
IUPAC:(2S,8'R,10'S)-3',4',5',19'-tetramethoxy-10'-methyl-15',17'-dioxaspiro[oxirane-2,9'-tetracyclo[10.7.0.0^{2,7}.0^{14,18}]nonadecane]-1'(19'),2'(7'),3',5',12',14'(18')-hexaen-8'-yl (2E)-2-methylbut-2-enoate