Using COC(=O)C1=C(C)NC(C)=C(C(=O)OC)C1c1cccc(Cl)c1Cl, c1c[nH]cn1 to produce COC(=O)C1=C(C)NC(Cc2ncc[nH]2)=C(C(=O)OC)C1c1cccc(Cl)c1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.