Using CC(C)(C)[Si](C)(C)Cl, COC(=O)c1ccc(-c2ccc3sc(S(=O)(=O)NCCO)c(C)c3c2)cc1 to produce COC(=O)c1ccc(-c2ccc3sc(S(=O)(=O)NCCO[Si](C)(C)C(C)(C)C)c(C)c3c2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.