Using [F-], CC(C)(C)OC(=O)N1CCC(Nc2cccc3cncc(Br)c23)CC1 to produce CC(C)(C)OC(=O)N1CCC(Nc2cccc3cncc(F)c23)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.