InChI=1/C20H24N4O4/c1-24(2)13-15-9-7-14(8-10-15)12-21-18(25)19(26)22-16-5-4-6-17(11-16)23-20(27)28-3/h4-11H,12-13H2,1-3H3,(H,21,25)(H,22,26)(H,23,27)/p+1/fC20H25N4O4/h21-24H/q+1 8EE6AC4B4B21FDD1