Using COC(=O)c1ncc(N)c2c1OC(C)(C)OC2, O=C(Cl)c1ccc(F)cc1 to produce COC(=O)c1ncc(NC(=O)c2ccc(F)cc2)c2c1OC(C)(C)OC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.