InChI=1/C16H28N4O/c1-13-9-20(10-14(2)18-13)11-15(21)19-16(12-17)7-5-3-4-6-8-16/h13-14,18H,3-11H2,1-2H3,(H,19,21)/p+1/t13-,14-/m0/s1/fC16H29N4O/h18-19H/q+1 18E84C5D05FB2C87