Using CC(=O)C(Cl)C(C)=O, NC(=S)NC(=O)c1c(F)cccc1F to produce CC(=O)c1sc(NC(=O)c2c(F)cccc2F)nc1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.