InChI=1/C16H24N4O/c1-11-14-16(20(19-11)13-5-3-2-4-6-13)18-15(17-14)12-7-9-21-10-8-12/h12-13,19H,2-10H2,1H3/p+1/fC16H25N4O/h18H/q+1 B53CB3513ACFC833