Using Cc1c[c-](C)c2c1CCCC2, CC(C)(C)N[Si](C)(C)Cl to produce CC1=C([Si](C)(C)NC(C)(C)C)C(C)C2=C1CCCC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.