InChI=1S/C18H15Cl3N2O5/c19-10-3-5-12(13(20)8-10)17(26)23-18(27)22-15-6-4-11(9-14(15)21)28-7-1-2-16(24)25/h3-6,8-9H,1-2,7H2,(H,24,25)(H2,22,23,26,27)