Using CCCCCCCCCCCCc1cnn(C(C(=O)OCC)c2ccccc2)n1 to produce CCCCCCCCCCCCc1cnn(C(C(=O)O)c2ccccc2)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.