Using Cc1ccccc1C=C1CCn2c1nc1ccc(C(N)=O)cc1c2=O to produce Cc1ccccc1C=C1CCn2c1nc1ccc(C#N)cc1c2=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.