Using O=C1c2ccccc2C(=O)N1CCCBr, COc1ccc(Cl)cc1N1CCNCC1 to produce COc1ccc(Cl)cc1N1CCN(CCCN2C(=O)c3ccccc3C2=O)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.