InChI=1/C25H26N2O6/c1-16-5-7-17(8-6-16)22(28)15-21(26-19-9-11-20(12-10-19)27(29)30)18-13-23(31-2)25(33-4)24(14-18)32-3/h5-14,21,26H,15H2,1-4H3/t21-/m1/s1 30E77FBDA2073EA6