InChI=1/C13H16N4O2/c1-2-3-12-11(8-14)15-16-17(12)10-6-4-9(5-7-10)13(18)19/h4-7H,2-3,8,14H2,1H3,(H,18,19)/f/h14H 900D97D11ED7899C