InChI=1S/C22H26O15/c23-9-3-1-8(5-10(9)24)2-4-13(26)35-12-7-22(34,6-11(25)14(12)27)21(33)37-20-17(30)15(28)16(29)18(36-20)19(31)32/h1-5,11-12,14-18,20,23-25,27-30,34H,6-7H2,(H,31,32)/b4-2-