InChI=1/C28H30N2O4/c1-33-22-11-9-19(10-12-22)28(32)20-13-15-30(16-14-20)17-21(31)18-34-26-8-4-7-25-27(26)23-5-2-3-6-24(23)29-25/h2-12,20-21,29,31H,13-18H2,1H3/p+1/t21-/m0/s1/fC28H31N2O4/h30H/q+1 82F2AB1E5DB87633