Using O=C(O)Cc1nn(Cc2ccc(Br)cc2F)c(=O)c2ccccc12 to produce O=C([O-])Cc1nn(Cc2ccc(Br)cc2F)c(=O)c2ccccc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.