InChI=1S/C20H15Cl2N3O4S/c1-28-14-9-15(11-3-2-4-13(23)7-11)19-17(10-14)24-20(29-19)25-30(26,27)18-8-12(21)5-6-16(18)22/h2-10H,23H2,1H3,(H,24,25)