Using CCS, Cc1cc(Cl)nc(Cl)c1C(=O)NCc1cc(F)cc(F)c1 to produce CCSc1nc(Cl)cc(C)c1C(=O)NCc1cccc(F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.