Using O=C(Cl)c1cccnc1Cl, O=C(Nc1cccc(F)c1)c1ccc[nH]1 to produce O=C(Nc1cccc(F)c1)c1ccc(C(=O)c2cccnc2Cl)[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.