Using CCC(C(=O)OC)(C(=O)OC)C(C)C(=O)c1ccc2nc(-c3ccccc3)oc2c1 to produce CCC(C(=O)O)(C(=O)O)C(C)C(=O)c1ccc2nc(-c3ccccc3)oc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.