InChI=1S/C25H22O8/c26-16-11-14-8-4-7-13-9-10-15(12-5-2-1-3-6-12)18(17(13)14)22(16)32-25-21(29)19(27)20(28)23(33-25)24(30)31/h1-11,19-23,25-29H,(H,30,31)