Using CN(C)C=O, C[C@H]1CCc2c(ccc(Br)c2Oc2ccccc2)N1C(=O)C1CC1 to produce C[C@H]1CCc2c(ccc(C#N)c2Oc2ccccc2)N1C(=O)C1CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.