Using O=C(/C=C/c1ccc2c(c1)C(=O)CC1(CN(C(=O)c3ccccc3)C1)O2)NOC1CCCCO1 to produce O=C(/C=C/c1ccc2c(c1)C(=O)CC1(CN(C(=O)c3ccccc3)C1)O2)NO, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.