Using CCOC(=O)CCc1cc2c(c(C)c1CCOCOC)NC(=O)CC2, [OH-] to produce COCOCCc1c(CCNC(=O)OC(C)(C)C)cc2c(c1C)NC(=O)CC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.