Using COc1ccc(-c2cccc3c2CN(CCCCCC(=O)NOCc2ccccc2)C3=O)c(OC)c1 to produce COc1ccc(-c2cccc3c2CN(CCCCCC(=O)NO)C3=O)c(OC)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.