Using OB(O)c1ccc(F)cc1, COC(=O)c1ccc(Br)cc1Nc1ccc(F)cc1 to produce O=C(O)c1ccc(-c2ccc(F)cc2)cc1Nc1ccc(F)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.