InChI=1S/C24H26N2O7/c1-31-13-6-5-12-15(16(13)32-2)26(20(29)33-3)23-9-8-21-7-4-10-25-18(28)14(24(12,23)19(21)25)17(27)22(23,30)11-21/h5-6,14,19,30H,4,7-11H2,1-3H3/t14-,19-,21+,22+,23-,24-/m0/s1