InChI=1/C17H18N4/c1-11-15(10-18-3)12(2)21-17(20-11)14-6-7-16-13(9-14)5-4-8-19-16/h4-9,18H,10H2,1-3H3/p+1/fC17H19N4/h18H/q+1 AA4E996FD3C242FE