1. Presented in part at the 9th International Congress of Heterocyclic Chemistry, August 1983, Tokyo, Japan.
2. This paper constitutes part XI of the series “Steroidal Derivatives”, Part X, reference 10.
3. Omaima, M. AboulWafa, Ph.D. Degree Thesis, Faculty of Pharmacy, University of Alexandria, Egypt (1981).
4. Chem. Abstr., 90, 80962m (1979).