Using C[O-], O=C(c1ccc(Cl)cc1)c1ccc2nc(Cl)cc(-c3cccc(Cl)c3)c2c1 to produce COc1cc(-c2cccc(Cl)c2)c2cc(C(=O)c3ccc(Cl)cc3)ccc2n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.