InChI=1/C21H19ClN2O4/c1-4-24-16-8-13(5-6-17(16)27-10-19(24)25)23-21(26)20-12(3)14-9-15(22)11(2)7-18(14)28-20/h5-9H,4,10H2,1-3H3,(H,23,26)/f/h23H 87BCFEE4B7427E0A