Using Cc1ccc(Cl)cc1CNC(=O)OC(C)(C)C, COc1ccc(N=CC(F)F)cc1 to produce COc1ccc(NC(Cc2ccc(Cl)cc2CNC(=O)OC(C)(C)C)C(F)F)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.