Using CCCc1cc(CCC)c2oc(C(N)=O)cc(=O)c2c1, O=C([O-])O to produce CCCc1cc(CCC)c2oc(C(=O)O)cc(=O)c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.