InChI=1S/C27H32N2O9/c1-5-15(2)25(32)38-23-16(3)37-27(34)19(29-24(31)21-22(30)20(35-4)11-12-28-21)14-36-26(33)18(23)13-17-9-7-6-8-10-17/h6-12,15-16,18-19,23,30H,5,13-14H2,1-4H3,(H,29,31)/t15-,16-,18+,19-,23+/m0/s1