Using COC(=O)c1ccc(-c2ccc3cc4c(cc3c2)C(C)(C)CCC4(C)C)cc1O, CI to produce COC(=O)c1ccc(-c2ccc3cc4c(cc3c2)C(C)(C)CCC4(C)C)cc1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.