Using OB(O)c1ccc(F)cc1, O=C(Nc1cc2ncc(CN3CCCC3)cc2cc1F)c1ccc(Br)cc1 to produce O=C(Nc1cc2ncc(CN3CCCC3)cc2cc1F)c1ccc(-c2ccc(F)cc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.