InChI=1/C14H20N4O/c1-3-4-13-17-11-9-10(15)5-6-12(11)18(13)8-7-14(19)16-2/h5-6,9H,3-4,7-8,15H2,1-2H3,(H,16,19)/f/h16H B272CFE5A411FD3E