Using CCCCCCCCCCCC(CC(=O)C(CCCCCC)C(=O)OC)OC1CCCCO1 to produce CCCCCCCCCCCC(CC(O)C(CCCCCC)C(=O)OC)OC1CCCCO1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.