Using CCOC(=O)C(NC(=O)c1cnc(Cl)cc1NC(C)C)C(C)=O to produce CCOC(=O)c1nc(-c2cnc(Cl)cc2NC(C)C)oc1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.