Using Cc1ccc(Sc2nc(N)c3ncn(Cc4ccccc4)c3n2)cc1, BrBr to produce Cc1ccc(Sc2nc(N)c3nc(Br)n(Cc4ccccc4)c3n2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.