Using CC(CCO)c1ccc(-c2ccccc2C(=O)OC(C)(C)C)cc1 to produce CC(CC=O)c1ccc(-c2ccccc2C(=O)OC(C)(C)C)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.