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