Using COC(=O)CCCCCC[C@@H]1C(=O)CC[C@H]1C=CC(=O)c1cccc2ccccc12 to produce COC(=O)CCCCCC[C@@H]1C(=O)CC[C@H]1CCC(=O)c1cccc2ccccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.