Using [NH4+], O=C(NN=CC(=O)c1c(F)cccc1F)c1ccc(Br)cc1 to produce Fc1cccc(F)c1-c1cnnc(-c2ccc(Br)cc2)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.