InChI=1/C18H14N2O3/c21-17-15-9-2-1-3-10(9)16-14(12(15)7-19-17)11-6-8(18(22)23)4-5-13(11)20-16/h4-6,20H,1-3,7H2,(H,19,21)(H,22,23)/p-1/fC18H13N2O3/h19H/q-1 79860EE1B3D09068