Using CCCN(CCC)[C@@H]1Cc2c(-c3ccno3)ccc3c2[C@H](CN3)C1 to produce CCCN(CCC)[C@H]1Cc2c[nH]c3ccc(-c4ccno4)c(c23)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.