InChI=1S/C25H28O8/c26-18(15-14-16-8-3-1-4-9-16)12-7-13-19(17-10-5-2-6-11-17)32-25-22(29)20(27)21(28)23(33-25)24(30)31/h1-12,19-23,25,27-29H,13-15H2,(H,30,31)