Using COCCBr, Cc1c2cc(-n3ccc(OCc4ccc(Cl)cc4)cc3=O)ccc2nn1CCO to produce COCCOCCn1nc2ccc(-n3ccc(OCc4ccc(Cl)cc4)cc3=O)cc2c1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.