Using CCN(CC)C(=O)c1c([Si](C)(C)CCl)ccc2ccccc12, [I-] to produce CCN(CC)C(=O)c1c([Si](C)(C)CI)ccc2ccccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.