Using BrCc1ccccc1, CC(C)(C)OC(=O)CN1C(=O)C2(CNC(=O)C2)c2cc(Cl)ccc21 to produce CC(C)(C)OC(=O)CN1C(=O)C2(CC(=O)N(Cc3ccccc3)C2)c2cc(Cl)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.