InChI=1/C19H22N4O/c1-24-12-11-21-14-22(13-16-7-3-2-4-8-16)19-20-17-9-5-6-10-18(17)23(19)15-21/h2-10H,11-15H2,1H3/p+1/fC19H23N4O/h20H/q+1 655ED49435A06B2F