Using CC(=O)O, CC(C(N)=O)c1ccc2c(c1)C(=O)Cc1cc(F)ccc1S2 to produce CC(C(=O)O)c1ccc2c(c1)C(=O)Cc1cc(F)ccc1S2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.