InChI=1S/C27H32N2O9/c1-15(2)12-21(30)38-24-16(3)37-27(34)19(29-25(32)22-23(31)20(35-4)10-11-28-22)14-36-26(33)18(24)13-17-8-6-5-7-9-17/h5-11,15-16,18-19,24,31H,12-14H2,1-4H3,(H,29,32)/t16-,18+,19-,24-/m0/s1