Using FC(F)(F)c1ccccc1OC1CCNCC1, Nc1nnc(Br)s1 to produce Nc1nnc(N2CCC(Oc3ccccc3C(F)(F)F)CC2)s1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.