Using Nc1nc2cccc(C(=O)Nc3ncc[nH]3)c2[nH]1, O=C(O)c1ccc(Cl)cc1 to produce O=C(Nc1nc2c(C(=O)Nc3ncc[nH]3)cccc2[nH]1)c1ccc(Cl)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.