InChI=1/C20H24N4O5/c1-28-18-11-15-17(12-19(18)29-2)23-16-10-13(24(26)27)4-5-14(16)20(15)22-7-3-6-21-8-9-25/h4-5,10-12,21,25H,3,6-9H2,1-2H3,(H,22,23)/p+2/fC20H26N4O5/h21-23H/q+2 A6A589490D9E1671