Using CC1(C)OC(=O)CC(=O)O1, O=C(Cl)c1ccccc1Cl to produce CC1(C)OC(=O)C(C(=O)c2ccccc2Cl)C(=O)O1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.