Using COc1cc2ncnc(Cl)c2cc1OC, O=C(Oc1ccc(O)cc1)c1ccccc1 to produce COc1cc2ncnc(Oc3ccc(OC(=O)c4ccccc4)cc3)c2cc1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.