Using CC(C)(C)[Si](C)(C)Cl, CC(O)(Br)CCC1CCC(=O)N1 to produce CC(Br)(CCC1CCC(=O)N1)O[Si](C)(C)C(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.