InChI=1/C19H15ClN4O4/c20-12-1-6-16-15(9-12)24(18(26)11-28-16)10-17(25)22-13-2-4-14(5-3-13)23-8-7-21-19(23)27/h1-9H,10-11H2,(H,21,27)(H,22,25)/f/h21-22H 0C56D3A1DCEFBD7B