Using CCOC(=O)C1CC(=O)c2cc(C(C)(C)C)cc(C(C)(C)C)c2O1 to produce CCOC(=O)c1cc(=O)c2cc(C(C)(C)C)cc(C(C)(C)C)c2o1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.