Using FC(F)(F)c1nnc2ccc(N3CCNCC3)nn12, Fc1ccccc1CCBr to produce Fc1ccccc1CCN1CCN(c2ccc3nnc(C(F)(F)F)n3n2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.