InChI=1S/C19H22N4O3/c1-13(11-22(2)3)26-15-8-6-14(7-9-15)18-16-5-4-10-20-19(16)23(21-18)12-17(24)25/h4-10,13H,11-12H2,1-3H3,(H,24,25)