Using COC(=O)C1(C)CCc2c(C)c(O)c(C)c(C)c2O1, CC(C)(C)[Si](C)(C)OCl to produce COC(=O)C1(C)CCc2c(C)c(O[Si](C)(C)C(C)(C)C)c(C)c(C)c2O1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.