Using COC(=O)C(C)Cc1ccc(OCC(=O)OC(C)(C)C)cc1 to produce CC(Cc1ccc(OCC(=O)OC(C)(C)C)cc1)C(=O)O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.