IMPPAT Phytochemical information: 
1-(2,4-Dihydroxyphenyl)-17-(6-hydroxy-1-benzofuran-2-yl)-11-methyl-2,20-dioxapentacyclo[11.7.1.03,8.09,21.014,19]henicosa-3(8),4,6,9,11,13(21),14,16,18-nonaene-5,10,15-triol