InChI=1/C19H22N4O/c1-4-15-9-5-7-13(2)18(15)22-19(24)20-11-16-12-23-14(3)8-6-10-17(23)21-16/h5-10,12H,4,11H2,1-3H3,(H2,20,22,24)/p+1/fC19H23N4O/h20-22H/q+1 7E857CF9C507E56C