InChI=1/C14H20N4O/c15-14-17-11-10(8-16-12(11)13(19)18-14)7-9-5-3-1-2-4-6-9/h8-9,16H,1-7H2,(H3,15,17,18,19)/p-1/fC14H19N4O/h15H2/q-1 0C720D44D82B05FB