InChI=1/C15H14N4O2/c1-10-3-2-8-18-13(9-16)14(17-15(10)18)11-4-6-12(7-5-11)19(20)21/h2-8H,9,16H2,1H3/p+1/fC15H15N4O2/h16H/q+1 14833270B4C721FB