Using CC1(C)CC(c2ccccc2Br)Nc2ccc(Cl)cc21, NC1(C(=O)O)CC1 to produce CC(C)(Nc1ccccc1C1CC(C)(C)c2cc(Cl)ccc2N1)C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.