InChI=1/C13H20N4O3/c1-17(2)11-5-3-10(4-6-11)9-15-13(19)14-8-7-12(18)16-20/h3-6,20H,7-9H2,1-2H3,(H,16,18)(H2,14,15,19)/f/h14-16H 9E3EB6DF62D0AB0E