Using BrBr, Cc1cc(-n2nc3ccc(Cl)cc3n2)c(O)c(C(C)(C)C)c1 to produce CC(C)(C)c1cc(CBr)cc(-n2nc3ccc(Cl)cc3n2)c1O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.