IUPAC:(3S,4R,8R,9E,12R)-10-methyl-5-methylidene-6,14-dioxo-7,13-dioxatricyclo[10.2.1.0^{4,8}]pentadeca-1(15),9-dien-3-yl (2Z)-2-methylbut-2-enoate
IUPAC:(3S,4R,8R,9E,12R)-10-methyl-5-methylidene-6,14-dioxo-7,13-dioxatricyclo[10.2.1.0^{4,8}]pentadeca-1(15),9-dien-3-yl (2Z)-2-methylbut-2-enoate