InChI=1/C17H14N2O2/c1-12(20)16(11-18)17(21)19-15-9-7-14(8-10-15)13-5-3-2-4-6-13/h2-10,19,21H,1H3/p-1/b17-16-/fC17H13N2O2/h21h/q-1 EB921887F520FE6C