InChI=1S/C26H28O11/c1-12(2)3-9-15-17(29)11-18(30)19(16(28)10-6-13-4-7-14(27)8-5-13)23(15)36-26-22(33)20(31)21(32)24(37-26)25(34)35/h3-8,10-11,20-22,24,26-27,29-33H,9H2,1-2H3,(H,34,35)/b10-6+