1. A. Walser and R.J. Fryer, U.S. Patent, 4,371,468 (1983);
2. U.S. Patent Application Serial No. 526194 (1983).
3. J. Sepinwall, Status Report on the Preclinical Pharmacology of Compound I, an Imidazobenzodiazepine Anxiolytic, Data on File, Hoffmann-La Roche, Nutley, NJ.