InChI=1S/C34H30O11/c35-21-10-7-17(8-11-21)6-9-19-14-24(43-34-30(40)28(38)29(39)32(45-34)33(41)42)16-25-26(19)27(20-12-22(36)15-23(37)13-20)31(44-25)18-4-2-1-3-5-18/h1-16,27-32,34-40H,(H,41,42)/b9-6-