InChI=1/C14H20N4O2/c15-17-13-9-10(5-6-16-13)14(19)18-7-8-20-12-4-2-1-3-11(12)18/h5-6,9,11-12H,1-4,7-8,15H2,(H,16,17)/t11-,12+/m1/s1/f/h17H E167C78F30B5E2EB