InChI=1S/C26H28O11/c1-11(9-27)2-4-14-17(28)7-6-13-16-10-34-18-8-12(3-5-15(18)23(16)36-22(13)14)35-26-21(31)19(29)20(30)24(37-26)25(32)33/h2-3,5-8,16,19-21,23-24,26-31H,4,9-10H2,1H3,(H,32,33)/b11-2+