Using NC[C@H](O)c1cccnc1, O=C(O)[C@H]1CCc2cc([N+](=O)[O-])ccc2O1 to produce O=C(NC[C@H](O)c1cccnc1)[C@H]1CCc2cc([N+](=O)[O-])ccc2O1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.