Using ClC(Cl)(Cl)C(Cl)(Cl)Cl, COc1ccc2c(CN(C)C)cn([Si](C(C)(C)C)(C(C)(C)C)C(C)(C)C)c2c1 to produce COc1cc(Cl)c2c(CN(C)C)cn([Si](C(C)(C)C)(C(C)(C)C)C(C)(C)C)c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.