Using CCCCC[C@H]1CC[C@H](CCCOc2ccc(C=O)cc2)CC1, CC(C)=O to produce CCCCC[C@H]1CC[C@H](CCCOc2ccc(C(=O)O)cc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.