Using Br, CCC(C)n1cc(-c2ccnc(Cl)c2)c(-c2ccc(Cl)s2)n1 to produce CCC(C)n1cc(-c2ccnc(Br)c2)c(-c2ccc(Cl)s2)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.