Using CC1(Br)C(=O)c2cc(-c3ccc(Cl)cc3)c(-c3ccccc3Cl)nc2OC12CCCCC2 to produce CC1C(=O)c2cc(-c3ccc(Cl)cc3)c(-c3ccccc3Cl)nc2OC12CCCCC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.