Using OB(O)c1ccc(Cl)cc1, COc1c(C)cc2nc(N)sc2c1Br to produce COc1c(C)cc2nc(N)sc2c1-c1ccc(Cl)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.