InChI=1/C19H22N4O4/c1-3-19(14-8-5-4-6-9-14)17(25)23(18(26)20-19)21-16(24)13-22(2)12-15-10-7-11-27-15/h4-11H,3,12-13H2,1-2H3,(H,20,26)(H,21,24)/p+1/t19-/m1/s1/fC19H23N4O4/h20-22H/q+1 DBCD0C02F84ECA08