InChI=1/C15H16N4O/c1-10(11-6-3-2-4-7-11)16-19-15(20)14-12-8-5-9-13(12)17-18-14/h2-4,6-7,14H,5,8-9H2,1H3,(H,19,20)/b16-10+/t14-/m1/s1/f/h19H 65EE7DD33CF8BC71