Using COC(=O)COC(=O)c1ccccc1C1(Cl)CC(F)=C(N)S1, S=C(Cl)Cl to produce COC(=O)COC(=O)c1ccccc1C1(Cl)CC(F)=C(N=C=S)S1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.