Using COCOc1c(C(=O)NC(C)(C)C(=O)OC)ccc2c1CCCC2 to produce COC(=O)C(C)(C)NC(=O)c1ccc2c(c1O)CCCC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.