Using O=C(OCc1cccc(Cl)c1)c1cc(OCc2cccc(Cl)c2)ccc1Cl to produce O=C(O)c1cc(OCc2cccc(Cl)c2)ccc1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.