Using COc1ccc(C23Cn4cc(C#N)cc4C(=O)N2CCN3C(=O)c2conc2C)cc1 to produce COc1ccc(C23Cn4cc(CN)cc4C(=O)N2CCN3C(=O)c2conc2C)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.