Using Cc1cccc2[nH]c(-c3cccc4c3-c3ccccc3C4=NO)nc12 to produce Cc1cccc2[nH]c(-c3cccc4c3-c3ccccc3C4N)nc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.