Using CC(C)(C)OC(=O)N1CCN(c2nccc3ccc(Br)cc23)CC1, Sc1ccc(Cl)cc1 to produce CC(C)(C)OC(=O)N1CCN(c2nccc3ccc(Sc4ccc(Cl)cc4)cc23)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.