InChI=1/C16H22N4O/c1-16(2,20(3)10-6-4-7-10)15-18-12-9-5-8-11(14(17)21)13(12)19-15/h5,8-10H,4,6-7H2,1-3H3,(H2,17,21)(H,18,19)/p+1/fC16H23N4O/h18,20H,17H2/q+1 7E0EB4A74EBABCB2