Using NO, O=C(NC1CCCCC1)C1=C(c2ccccc2)c2ccc(OCCN3CCOCC3)cc2C1=O to produce O=C(NC1CCCCC1)C1=C(c2ccccc2)c2ccc(OCCN3CCOCC3)cc2C1=NO, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.