InChI=1/C16H20N4O/c17-16(19-21)7-9-20(14-4-5-14)11-12-3-6-15-13(10-12)2-1-8-18-15/h1-3,6,8,10,14,21H,4-5,7,9,11H2,(H2,17,19)/p+1/fC16H21N4O/h20H,17H2/q+1/b19-16+	B477B5EDC7A4E40A