Using COC(=O)C(C)(C)NCC(=O)c1cc(F)cc(F)c1, CCOC(=O)CN to produce CCOC(=O)CN1C(=O)C(C)(C)NCC1c1cc(F)cc(F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.