Using CCCCCI, CC1(C)CC(C)(C)c2cc(CC(=O)O)ccc2O1 to produce CCCCCC(C(=O)O)c1ccc2c(c1)C(C)(C)CC(C)(C)O2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.