Using O=C1c2ccccc2C(=O)N1CCBr, FC(F)(F)c1ccc(N2CCNCC2)cc1 to produce O=C1c2ccccc2C(=O)N1CCN1CCN(c2ccc(C(F)(F)F)cc2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.