InChI=1/C21H18N2O3/c1-2-25-19-9-7-18(8-10-19)23-21(24)17(13-22)12-15-11-16-5-3-4-6-20(16)26-14-15/h3-12H,2,14H2,1H3,(H,23,24)/b17-12-/f/h24H/b17-12-,23-21? 56A42191CAEF2B16