InChI=1S/C23H32O17/c1-3-7-8(4-11(25)38-23-17(31)14(28)15(29)18(39-23)19(32)33)9(20(34)35-2)6-36-21(7)40-22-16(30)13(27)12(26)10(5-24)37-22/h3,6,8,10,12-18,21-24,26-31H,4-5H2,1-2H3,(H,32,33)/b7-3-