Using Cc1ccc(C(C)C)c(OCC2CCNCC2)c1, O=C1c2ccccc2C(=O)N1CCCBr to produce Cc1ccc(C(C)C)c(OCC2CCN(CCCN3C(=O)c4ccccc4C3=O)CC2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.