Using CCOC(=O)C1(C)C(=O)Nc2cc(N)ccc21, O=C(Cl)c1ccncc1 to produce CCOC(=O)C1(C)C(=O)Nc2cc(NC(=O)c3ccncc3)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.