Using O=C(Cl)c1cccnc1, O=C(c1ccccc1)c1cc(Cl)ccc1O to produce O=C(Oc1ccc(Cl)cc1C(=O)c1ccccc1)c1cccnc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.