Using CCOC(=O)c1ccccc1-c1ccc(-c2ccc(OCC)c(F)c2F)cc1 to produce CCOc1ccc(-c2ccc(-c3ccccc3C(=O)O)cc2)c(F)c1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.