InChI=1S/C25H34O17/c1-9(28)10-2-4-11(5-3-10)38-23-19(42-24-20(33)25(36,7-27)8-37-24)17(13(29)12(6-26)39-23)40-22-16(32)14(30)15(31)18(41-22)21(34)35/h2-5,12-20,22-24,26-27,29-33,36H,6-8H2,1H3,(H,34,35)