InChI=1/C16H22N4O/c1-3-10(2)18-14(21)9-20-13-6-4-5-12(17)15(13)19-16(20)11-7-8-11/h4-6,10-11H,3,7-9,17H2,1-2H3,(H,18,21)/t10-/m1/s1/f/h18H 677CDDC36ABEC881