Using CCCOc1ccc(Br)cn1, CC(C)(C)[S@@](=O)N=CCO[Si](C)(C)C(C)(C)C to produce CCCOc1ccc([C@H](CO[Si](C)(C)C(C)(C)C)N[S@](=O)C(C)(C)C)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.