Using CI, CCC(C)NC(=O)c1cc(-c2ccccc2)c2ccsc2c1 to produce CCC(C)N(C)C(=O)c1cc(-c2ccccc2)c2ccsc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.