1,1'-[1,3,7,9-tetrahydroxy-4-(2-hydroxy-3-methylbut-3-en-1-yl)-8-(3-methylbut-2-en-1-yl)dibenzo[b,d]furan-2,6-diyl]bis(2-methylbutan-1-one) 1-butanone, 1,1'-[1,3,7,9-tetrahydroxy-4-(2-hydroxy-3-methyl-3-butenyl)-8-(3-methyl-2-butenyl)-2,6-dibenzofurandiyl]bis[2-methyl- 2-Methyl-1-[1,3,7,9-tetrahydroxy-6-(2-hydroxy-3-methyl-but-3-enyl)-2-(3-methyl-but-2-enyl)-8-(2-methyl-butyryl)-dibenzofuran-4-yl]-butan-1-one Achyrofuran InChI=1/C32H40O8/c1-9-16(7)25(34)23-29(38)19(13-20(33)15(5)6)31-22(30(23)39)21-27(36)18(12-11-14(3)4)28(37)24(32(21)40-31)26(35)17(8)10-2/h11,16-17,20,33,36-39H,5,9-10,12-13H2,1-4,6-8H