Using CCCOc1ccc(C=CC(=O)OC(C)(C)C)cc1-c1nc2c(C)cccc2c(=O)[nH]1 to produce CCCOc1ccc(C=CC(=O)O)cc1-c1nc2c(C)cccc2c(=O)[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.