Using O=Cc1cc([N+](=O)[O-])ccc1F, C=C(Br)CCO[Si](C)(C)C(C)(C)C to produce C=C(CCO[Si](C)(C)C(C)(C)C)C(O)c1cc([N+](=O)[O-])ccc1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.