Using CC(C)(C)[Si](C)(C)OC[C@H]1Cc2c(Br)cccc2CN1 to produce CC(C)(C)[Si](C)(C)OC[C@H]1Cc2c(Br)cccc2C=N1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.