Using O=C(NOCc1ccccc1)c1ccc(OC(=O)C2(c3ccccc3)CCCCC2)cc1 to produce O=C(NO)c1ccc(OC(=O)C2(c3ccccc3)CCCCC2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.