Using CS(=O)(=O)O[C@@H]1CCN(c2ccc(Br)cn2)C1, F[C@@H]1CCNC1 to produce F[C@@H]1CCN([C@H]2CCN(c3ccc(Br)cn3)C2)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.