Using CN(C)C=O, CN1CCC(=C2c3cc(Br)ccc3C=Cn3cccc32)CC1 to produce CN1CCC(=C2c3cc(C#N)ccc3C=Cn3cccc32)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.