Using Clc1nccc2ccc(Br)cc12, CC(C)(C)OC(=O)N1CCCNCC1 to produce CC(C)(C)OC(=O)N1CCN(c2nccc3ccc(Br)cc23)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.