Using O=C(O)Cc1ccc(O)c(Cl)c1, Oc1cc(Cl)c(Cl)cc1Cl to produce O=C(Cc1ccc(O)c(Cl)c1)Oc1cc(Cl)c(Cl)cc1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.