Using OCc1cccc(Sc2ccnc(Nc3ccc(N4CCOCC4)cc3)n2)c1, BrC(Br)(Br)Br to produce BrCc1cccc(Sc2ccnc(Nc3ccc(N4CCOCC4)cc3)n2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.