Using CCOC(=O)C(F)(F)Br, Cc1cc(Nc2nccc(C(F)(F)F)n2)cc(-c2ccc(C=O)nc2)c1 to produce CCOC(=O)C(F)(F)C(O)c1ccc(-c2cc(C)cc(Nc3nccc(C(F)(F)F)n3)c2)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.