Using CN1C(=O)CCc2cc(-c3cncc(CN[S@](=O)C(C)(C)C)c3Cl)ccc21 to produce CN1C(=O)CCc2cc(-c3cncc(CN)c3Cl)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.