Using C[C@@H](CBr)CO[Si](C)(C)C(C)(C)C, O=C1CSc2ccccc2N1 to produce C[C@H](CO[Si](C)(C)C(C)(C)C)CN1C(=O)CSc2ccccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.