Using CCOc1c(-c2noc3ccc(C(C)=CC(=O)OC)cc23)cc(C(C)C)cc1C(C)C to produce CCOc1c(-c2noc3ccc(C(C)=CC(=O)O)cc23)cc(C(C)C)cc1C(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.