Using CCCCCC(O)CC[C@@H]1[C@@H](CC(=O)C(F)CCCC(=O)OC)[C@@H](OC2CCCCO2)C[C@H]1OC1CCCCO1 to produce CCCCCC(=O)CC[C@@H]1[C@@H](CC(=O)C(F)CCCC(=O)OC)[C@@H](OC2CCCCO2)C[C@H]1OC1CCCCO1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.