Using CCOC(=O)c1cc(N)n(-c2ccccc2)n1, O=C(O)c1cc(Br)ccc1Cl to produce CCOC(=O)c1cc(NC(=O)c2cc(Br)ccc2Cl)n(-c2ccccc2)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.