11H-Benzofuro(3,2-b)(1)benzopyran-11-one, 2-(5,6-dihydro-9-hydroxy-2-methyl-2,6-methano-2H-1-benzoxocin-4-yl)-5a,10a-dihydro-1,3,5a,8-tetrahydroxy-10a-(3-methyl-2-butenyl)- 81381-67-1