Using O=C(O)c1cc(Cl)nnc1Cl, NC(=O)c1cccc(N)c1N to produce NC(=O)c1cccc(NC(=O)c2cc(Cl)nnc2Cl)c1N, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.