Using CCOC(=O)c1c(-c2ccccc2)c2cc(Cl)ccc2oc1=O to produce CCOC(=O)C1C(=O)Oc2ccc(Cl)cc2C1c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.