Using FC(F)(F)c1cc(Br)ccn1, CC(C)(C)OC(=O)N1CCC2(CCNCC2)C1 to produce CC(C)(C)OC(=O)N1CCC2(CCN(c3ccnc(C(F)(F)F)c3)CC2)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.