Using NO, CCOC(=O)c1nc2nc3cc(OC)c(OC)cc3cc2c(=O)[nH]1 to produce COc1cc2cc3c(=O)[nH]c(C(=O)NO)nc3nc2cc1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.