Using CCC(CC)(c1ccc(OCC(O)C(C)(C)C)c(C)c1)c1ccc(C(=O)O)c(C)c1 to produce CCC(CC)(c1ccc(OCC(=O)C(C)(C)C)c(C)c1)c1ccc(C(=O)O)c(C)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.