Using COC(=O)c1ccc(O)cc1, CC(C)(C)OC(=O)N1CC(F)(F)CC1CO to produce COC(=O)c1ccc(OCC2CC(F)(F)CN2C(=O)OC(C)(C)C)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.