Using CCOC(=O)COc1ccc(C)c(NCc2cc(-c3cccc(F)c3)ccc2F)c1C to produce Cc1ccc(OCC(=O)O)c(C)c1NCc1cc(-c2cccc(F)c2)ccc1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.