Using C=CCNc1nc(OCc2ccc(F)cc2F)c(Cl)c(=O)n1-c1cc(C(=O)OC)ccc1C to produce C=CCNc1nc(OCc2ccc(F)cc2F)c(Cl)c(=O)n1-c1cc(C(=O)O)ccc1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.