InChI=1/C16H24N4O2/c1-16(2,11-19-14(21)9-18-15(17)22)20-8-7-12-5-3-4-6-13(12)10-20/h3-6H,7-11H2,1-2H3,(H,19,21)(H3,17,18,22)/p+1/fC16H25N4O2/h18-20H,17H2/q+1 E58A173C4AB8CD81