InChI=1/C28H28N2O4/c1-18(2)28(31)29-21-10-13-25-24(15-21)27(34-17-19-8-11-22(32-3)12-9-19)16-26(30-25)20-6-5-7-23(14-20)33-4/h5-16,18H,17H2,1-4H3,(H,29,31)/p+1/fC28H29N2O4/h29-30H/q+1 F962C8C084186E3B