IUPAC:(1R)-1-(2,4-dihydroxyphenyl)-17-(6-hydroxy-1-benzofuran-2-yl)-11-methyl-2,20-dioxapentacyclo[11.7.1.0^{3,8}.0^{9,21}.0^{14,19}]henicosa-3(8),4,6,9,11,13(21),14(19),15,17-nonaene-5,15-diol
IUPAC:(1R)-1-(2,4-dihydroxyphenyl)-17-(6-hydroxy-1-benzofuran-2-yl)-11-methyl-2,20-dioxapentacyclo[11.7.1.0^{3,8}.0^{9,21}.0^{14,19}]henicosa-3(8),4,6,9,11,13(21),14(19),15,17-nonaene-5,15-diol