Using CCOC(=O)c1cc(C(=O)N2CCCC2)cc(-c2ccc(Br)cc2)c1 to produce O=C(O)c1cc(C(=O)N2CCCC2)cc(-c2ccc(Br)cc2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.