InChI=1S/C29H34O17/c1-40-15-3-10(4-16(41-2)20(15)33)27-17(44-29-26(39)24(37)22(35)19(9-31)46-29)7-12-13(42-27)5-11(32)6-14(12)43-28-25(38)23(36)21(34)18(8-30)45-28/h3-7,18-19,21-26,28-31,34-39H,8-9H2,1-2H3,(H-,32,33)/p+1