Using CCCN(CCC)C1Cc2c(C(N)=O)ccc3c2C(CN3)C1 to produce CCCN(CCC)C1Cc2c[nH]c3ccc(C(N)=O)c(c23)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.