Using CI, C[C@H](O)C[C@@H](C)Oc1ccc(-c2ccc(C#N)cc2)cc1 to produce CO[C@@H](C)C[C@@H](C)Oc1ccc(-c2ccc(C#N)cc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.