Using CCOC(=O)C(=O)Nc1ccc(F)cc1F, COC(=O)C#CC(=O)OC to produce CCOC1=C(C(=O)OC)C(C(=O)OC)N(c2ccc(F)cc2F)C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.