InChI=1/C16H20N4O/c1-3-10-6-4-5-9(2)13(10)18-16(21)15-12(17)14(19-20-15)11-7-8-11/h4-6,11H,3,7-8,17H2,1-2H3,(H,18,21)(H,19,20)/f/h18,20H	C6B88DC19EEA51D7