InChI=1S/C28H28N2O11/c1-3-12-13-7-11(40-26-22(33)20(31)21(32)23(41-26)25(35)36)5-6-17(13)29-19-14(12)9-30-18(19)8-16-15(24(30)34)10-39-27(37)28(16,38)4-2/h5-8,20-23,26,31-33,38H,3-4,9-10H2,1-2H3,(H,35,36)/t20-,21-,22+,23-,26+,28-/m0/s1