InChI=1/C21H22N4O4/c1-23-13-16(15-6-5-14(20(26)27)12-17(15)23)19(21(28)29)25-10-8-24(9-11-25)18-4-2-3-7-22-18/h2-7,12-13,19H,8-11H2,1H3,(H,26,27)(H,28,29)/p-1/t19-/m1/s1/fC21H21N4O4/h25H/q-1 F6A169D740BFFE45