Using [Cl-], CC(C)(C)[Si](OC[C@H](CCS(=O)(=O)[O-])NS(C)(=O)=O)(c1ccccc1)c1ccccc1 to produce CC(C)(C)[Si](OC[C@@H](CCl)NS(C)(=O)=O)(c1ccccc1)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.