InChI=1S/C25H30O9/c26-17(12-11-16-6-2-4-8-19(16)27)7-3-1-5-15-9-13-18(14-10-15)33-25-22(30)20(28)21(29)23(34-25)24(31)32/h2,4,6,8-10,13-14,20-23,25,27-30H,1,3,5,7,11-12H2,(H,31,32)