Using CCOC(=O)C(F)(F)Cl, CC(C)(C)OC(=O)N1Cc2ccc(O)cc2C1 to produce CC(C)(C)OC(=O)N1Cc2ccc(OC(F)F)cc2C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.