Using CCS(=O)(=O)N(CCCCC(=O)OC)C1CC(C)(C)Oc2ccc(C)cc21 to produce CCS(=O)(=O)N(CCCCC(=O)O)C1CC(C)(C)Oc2ccc(C)cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.