Using CC(=O)c1cc(C(C)(C)C)c2c(c1)C(C)(C)CO2, CC(C)=O to produce CC(C)(O)CC(=O)c1cc(C(C)(C)C)c2c(c1)C(C)(C)CO2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.