Using CCOC(=O)COc1cc2cc(-c3ccccc3)sc2c(Cl)c1Cl to produce O=C(O)COc1cc2cc(-c3ccccc3)sc2c(Cl)c1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.