Using CC(C)(C)[Si](C)(C)Cl, CN1CCC[C@H]1Cc1c[nH]c2ccc(Br)cc12 to produce CN1CCC[C@H]1Cc1cn([Si](C)(C)C(C)(C)C)c2ccc(Br)cc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.