Using COC(=O)Cc1ccc(Nc2ncc3cc(-c4c(Cl)cccc4Cl)c(=O)n(C)c3n2)cc1 to produce Cn1c(=O)c(-c2c(Cl)cccc2Cl)cc2cnc(Nc3ccc(CC(=O)O)cc3)nc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.