InChI=1/C16H19N3/c1-4-11-5-6-13-12(8-11)15(17)14-9(2)7-10(3)18-16(14)19-13/h5-8,13H,4,17H2,1-3H3,(H,18,19)/p+1/t13-/m0/s1/fC16H20N3/h18-19H/q+1 7D2777F883AC257A