InChI=1/C19H22N4O/c1-14-7-9-15(10-8-14)13-21-19-22-17-6-3-2-5-16(17)18(23-19)20-11-4-12-24/h2-3,5-10,24H,4,11-13H2,1H3,(H2,20,21,22,23)/p+1/fC19H23N4O/h20-22H/q+1 A4BE57BC685B5FE0