Using Cc1cc2c(cc1Br)C(c1ccccn1)=NC(C)(C)O2, [C-]#N to produce Cc1cc2c(cc1C#N)C(c1ccccn1)=NC(C)(C)O2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.