InChI=1/C13H20N4O2/c1-17(6-10(18)8-19-2)7-13-15-11-4-3-9(14)5-12(11)16-13/h3-5,10,18H,6-8,14H2,1-2H3,(H,15,16)/t10-/m1/s1/f/h16H 9EDDBE9EADB051D4