InChI=1/C21H22N4O/c1-4-24-17-10-9-16(12-18(17)25(5-2)21(24)26)20-19(22-13-23-20)15-8-6-7-14(3)11-15/h6-13H,4-5H2,1-3H3,(H,22,23)/p+1/fC21H23N4O/h22-23H/q+1 64E2191D8E1F7031