Using CS(=O)(=NC(=O)C(F)(F)F)c1ccc(CN2C(=O)c3ccccc3C2=O)cc1 to produce CS(=N)(=O)c1ccc(CN2C(=O)c3ccccc3C2=O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.