InChI=1/C19H20N4O/c1-22(12-14-6-3-2-4-7-14)13-17-21-16-9-5-8-15-18(16)23(17)11-10-20-19(15)24/h2-9H,10-13H2,1H3,(H,20,24)/p+1/fC19H21N4O/h20,22H/q+1 1014B64020B3B024