Using O=C([O-])C(Cl)(Cl)Cl, COc1cc(OC)c(OC)cc1C=O to produce COc1cc(OC)c(C(O)C(Cl)(Cl)Cl)cc1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.