Using Cc1noc(-c2ccc(Br)cc2)c1N, O=C=NCc1ccccc1 to produce Cc1noc(-c2ccc(Br)cc2)c1NC(=O)NCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.