Using CC(C)(C)c1cc2c(c(C(C)(C)C)c1)OC(=O)C2O, CSc1ccccc1 to produce CSc1ccc(C2C(=O)Oc3c2cc(C(C)(C)C)cc3C(C)(C)C)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.