Using OB(O)c1cc(Cl)ccc1O, COc1ccc(Cn2cc(Br)n3cncc3c2=O)cc1 to produce COc1ccc(Cn2cc(-c3cc(Cl)ccc3O)n3cncc3c2=O)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.