Using Fc1cc(-c2nc(CCl)co2)cc(C(F)(F)F)c1, CCOC(=O)CC(=O)OCC to produce CCOC(=O)C(Cc1coc(-c2cc(F)cc(C(F)(F)F)c2)n1)C(=O)OCC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.