InChI=1/C13H16N4O2/c18-12(7-14-6-8-1-2-8)15-9-3-4-10-11(5-9)17-13(19)16-10/h3-5,8,14H,1-2,6-7H2,(H,15,18)(H2,16,17,19)/p+1/fC13H17N4O2/h14-17H/q+1 60703A2B791C51B7