Using CNC(=O)c1c(-c2ccc(F)cc2)oc2ccc(-c3cc(C(=O)OC)cc(F)c3C)cc12 to produce CNC(=O)c1c(-c2ccc(F)cc2)oc2ccc(-c3cc(C(=O)O)ccc3C)cc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.