Using CCCCCCC(=O)NCCc1ccc(N)cc1, CC(C)(C)OC(=O)C(C)(C)Br to produce CCCCCCC(=O)NCCc1ccc(NC(C)(C)C(=O)OC(C)(C)C)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.