InChI=1/C16H24N4O2/c1-12(21)18-19-15(22)17-11-16(2,3)20-9-8-13-6-4-5-7-14(13)10-20/h4-7H,8-11H2,1-3H3,(H,18,21)(H2,17,19,22)/f/h17-19H 4B8D1A0A34B3B859