1. M. Dubey, V. K. Verma, and K. Shander, Pharmazie, 33, 268 (1978).
2. L. Smith and G. Houser, Biochem. Pharmacol., 28, 1759 (1979).
3. K. Hofmann, Imidazole and Its Derivatives, Part 1, Wiley-Interscience, New York (1953), pp. 213?246.
4. O. N. Bubel', I. G. Tishchenko, G. Z. Stasevich, I. L. Romanko, A. F. Abramov, and E. D. Skakovskii, Khim. Geterotsikl. Soedin., No. 7, 888 (1979).
5. R. B. Woller and N. H. Cromwell, J. Heterocycl. Chem., 5, 579 (1968).