InChI=1/C16H20N4O/c17-13-7-6-11(15-12(13)4-3-8-19-15)10-20-9-2-1-5-14(20)16(18)21/h3-4,6-8,14H,1-2,5,9-10,17H2,(H2,18,21)/p+1/t14-/m1/s1/fC16H21N4O/h20H,18H2/q+1 4BD931BF1B614492