Using CC(=O)N1Cc2ccccc2C2(CCN(C3(C#N)CCCCC3)CC2)C1 to produce CC(=O)N1Cc2ccccc2C2(CCN(C3(C)CCCCC3)CC2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.