IUPAC:(11R,15R,16R)-16-(4-hydroxy-3,5-dimethoxyphenyl)-4,6,13-trioxatetracyclo[7.7.0.0^{3,7}.0^{11,15}]hexadeca-1(9),2,7-triene-10,14-dione
IUPAC:(11R,15R,16R)-16-(4-hydroxy-3,5-dimethoxyphenyl)-4,6,13-trioxatetracyclo[7.7.0.0^{3,7}.0^{11,15}]hexadeca-1(9),2,7-triene-10,14-dione