Using CC(C)(C)OC(=O)NC1CCNCC1, COC(=O)c1ccc(CBr)cc1 to produce COC(=O)c1ccc(CN2CCC(NC(=O)OC(C)(C)C)CC2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.