InChI=1S/C27H34O15/c1-9-12-17(40-25(35)27(4)10(2)41-27)16(38-24-15(30)13(28)14(29)19(39-24)21(31)32)11(23(34)36-5)7-6-8-26(3)20(42-26)18(12)37-22(9)33/h7,10,12-20,24,28-30H,1,6,8H2,2-5H3,(H,31,32)/b11-7+