InChI=1/C16H28N4O/c1-19-2-4-20(5-3-19)18-15(21)17-16-9-12-6-13(10-16)8-14(7-12)11-16/h12-14H,2-11H2,1H3,(H2,17,18,21)/p+1/fC16H29N4O/h17-19H/q+1 32FB8735EA25A712