Using CC(C)(C)OC(=O)c1ccc(Nc2nc(NCc3ccc(O)cc3)nc(OCC(F)(F)F)n2)cc1, BrCCBr to produce CC(C)(C)OC(=O)c1ccc(Nc2nc(NCc3ccc(OCCBr)cc3)nc(OCC(F)(F)F)n2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.