Using CI, CC(C)(C)OC(=O)c1cc(OCc2ccccc2)c2c(c1)OC(CO)C2 to produce COCC1Cc2c(OCc3ccccc3)cc(C(=O)OC(C)(C)C)cc2O1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.