Using O=C1NCCNC1c1ccccc1, O=C(CBr)c1ccc(Cl)cc1 to produce O=C(CN1CCNC(=O)C1c1ccccc1)c1ccc(Cl)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.