InChI=1S/C19H22N4O/c1-23(2)12-6-11-21-19(24)15-9-5-8-14-17(20)13-7-3-4-10-16(13)22-18(14)15/h3-5,7-10H,6,11-12H2,1-2H3,(H2,20,22)(H,21,24)