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