Using NO, COCOc1ccc(C2CCCC(C(=O)O)C2)c(OCOC)c1 to produce COCOc1ccc(C2CCCC(C(=O)NO)C2)c(OCOC)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.