InChI=1S/C19H15ClN2O3/c1-22-9-10(6-7-23)15-14(22)8-12(11-4-2-3-5-13(11)20)16-17(15)19(25)21-18(16)24/h2-5,8-9,23H,6-7H2,1H3,(H,21,24,25)