4'-Fluoro diazepam is a 1,4-benzodiazepine compound. 4'-Fluoro diazepam is structurally similar to Diazepam, but its has only minimal biological activity[1].
References
[1] Sternbach LH, et al. Quinazolines and 1,4-benzodiazepines. 64. Comparison of the stereochemistry of diazepam with that of close analogs with marginal biological activity. J Med Chem. 1974 Mar;17(3):374-7. DOI:10.1021/jm00249a032