Using COC(=O)C(C)(C)CO, COC(=O)C1OC1(c1ccccc1)c1ccccc1 to produce COC(=O)C(O)C(OCC(C)(C)C(=O)OC)(c1ccccc1)c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.