Using CCCCn1c(=O)c2c(ncn2CCC2CO2)n(CCCC)c1=O, O=C([O-])O to produce CCCCn1c(=O)c2c(ncn2CCC(O)CO)n(CCCC)c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.