Using FC(F)(F)c1cccc(N2CCNCC2)c1, CCOC(=O)CCBr to produce O=C(O)CCN1CCN(c2cccc(C(F)(F)F)c2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.