InChI=1/C15H18N4O/c1-10-4-3-5-11(2)14(10)18-15(20)19-7-6-12-13(8-19)17-9-16-12/h3-5,9H,6-8H2,1-2H3,(H,16,17)(H,18,20)/p+1/fC15H19N4O/h16-18H/q+1 B6DF000F9A4DC191