InChI=1/C19H18N4O3/c1-13-6-8-14(9-7-13)18(24)12-22-11-17(21(2)19(22)20)15-4-3-5-16(10-15)23(25)26/h3-11,20H,12H2,1-2H3/p+1/fC19H19N4O3/h20H/q+1 55B63D62C990317F