Using CN(c1ccc([N+](=O)[O-])cc1)c1nc(=O)c2cccnc2s1 to produce CN(c1ccc(NO)cc1)c1nc(=O)c2cccnc2s1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.