Using CCS, CC(C)(CF)C(=O)C(=Cc1ccc(Cl)cc1Cl)n1cncn1 to produce CCSC(c1ccc(Cl)cc1Cl)C(C(=O)C(C)(C)CF)n1cncn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.