Using CC(C)(C)OC(=O)N1CCN(c2ncc(Br)cn2)CC1, OB(O)c1ccc(F)cc1 to produce CC(C)(C)OC(=O)N1CCN(c2ncc(-c3ccc(F)cc3)cn2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.