Using CN(C)CCn1c(=O)c2cccc3c4c5c(ccc4n(c1=O)c23)C(=O)CO5 to produce CN(C)CCn1c(=O)c2cccc3c4c5c(ccc4n(c1=O)c23)C(O)CO5, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.