InChI=1/C13H18N4O2/c1-3-9(14)12(18)15-7(2)8-4-5-10-11(6-8)17-13(19)16-10/h4-7,9H,3,14H2,1-2H3,(H,15,18)(H2,16,17,19)/p+1/t7-,9-/m0/s1/fC13H19N4O2/h14-17H/q+1 B6A3DF3B38354DC8