Using CCCCCCc1ccc(-c2[nH]ncc2C(C)C(=O)OCC)cc1, NO to produce CCCCCCc1ccc(-c2[nH]ncc2C(C)C(=O)NO)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.