InChI=1/C21H24N4/c1-15-8-9-17(14-16(15)2)20-18-6-4-5-7-19(18)21(23-22-20)25-12-10-24(3)11-13-25/h4-9,14H,10-13H2,1-3H3/p+1/fC21H25N4/h24H/q+1 50406FCB9D711CDC