InChI=1/C15H16N4O/c16-15(17)19-18-13(11-7-3-1-4-8-11)14(20)12-9-5-2-6-10-12/h1-10,13,18H,(H4,16,17,19)/p+1/t13-/m0/s1/fC15H17N4O/h19H,16-17H2/q+1 9B63F3C35E43A1B3