InChI=1S/C19H20ClN3O4/c20-15-10-13(16(24)11-17(15)25)19-14-9-12(1-2-18(14)27-22-19)21-3-4-23-5-7-26-8-6-23/h1-2,9-11,21,24-25H,3-8H2