Using CC(C)(C)[Si](C)(C)O[C@H]1CC[C@@H]2CC[C@@]1(c1ccccc1)N2, C=CCBr to produce C=CCN1[C@@H]2CC[C@H](O[Si](C)(C)C(C)(C)C)[C@@]1(c1ccccc1)CC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.