Using N#CBr, COc1ccc2c(c1)[C@]13CCN(C)[C@H](C2)[C@@H]1[C@@H](C)CC(=O)C3 to produce COc1ccc2c(c1)[C@]13CCN(C#N)[C@H](C2)[C@@H]1[C@@H](C)CC(=O)C3, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.