Using COC1CN(C(=O)c2cc(-c3ccccc3)c(=O)[nH]c2-c2c(Cl)cccc2C#N)C1 to produce COC1CN(C(=O)c2cc(-c3ccccc3)c(=O)n3c2-c2c(Cl)cccc2C3)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.