Using CC(C)c1ccc(C(O)C(=O)O)cc1, Cc1cc(C)c(C)c(O)c1 to produce Cc1cc(C)c2c(c1C)OC(=O)C2c1ccc(C(C)C)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.