Using CC(C)(C)OC(=O)Nc1ccc(O)c2ccccc12, ClCCCBr to produce CC(C)(C)OC(=O)Nc1ccc(OCCCCl)c2ccccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.