InChI=1/C14H16N4O2/c1-9-4-2-3-5-10(9)13-17-12(20-18-13)8-11-14(19)16-7-6-15-11/h2-5,11,15H,6-8H2,1H3,(H,16,19)/t11-/m1/s1/f/h16H E04BD21880C7E566