11H-Benzofuro[3,2-b][1]benzopyran-11-one,2- [6-(2,4-dihydroxybenzoyl)-5-(2,4-dihydroxyphenyl)- 3-methyl-2-cyclohexen-1-yl]-5a,- 10a-dihydro-1,3,5a,8-tetrahydroxy-10a-(3- methyl-2-butenyl)-