InChI=1/C15H20N4O/c16-9-11-5-3-4-8-19(11)10-14-17-13-7-2-1-6-12(13)15(20)18-14/h1-2,6-7,11H,3-5,8-10,16H2,(H,17,18,20)/p+1/t11-/m1/s1/fC15H21N4O/h16,18H/q+1 6F7192E0A77F1CEA