InChI=1/C18H19N3/c1-12-8-10-15(11-9-12)17-13(2)20-18(21-17)16(19)14-6-4-3-5-7-14/h3-11,16H,19H2,1-2H3,(H,20,21)/p+1/t16-/m1/s1/fC18H20N3/h20-21H/q+1 38DABF7B47C77E81