Using Cc1ccc(-c2nc3ccccc3o2)cc1O, CC(C)(C)[Si](C)(C)OCCBr to produce Cc1ccc(-c2nc3ccccc3o2)cc1OCCO[Si](C)(C)C(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.