1. For Part 5 see: Badawey E. A. M., Rida S. M., Soliman F. S. G., Kappe T. (in press) J. Heterocycl. Chem.26
2. For part 9 see: Stadlbauer W., Pfaffenschlager A., Kappe T. (1989) Synthesis: 871
3. Badawey E. A. M., Rida S. M., Soliman F. S. G., Kappe T. (1989) J. Heterocycl. Chem.26: 405
4. Kappe T., Pfaffenschlager A., Stadlbauer W. (1989) Synthesis: 666; and literature cited therein
5. Conducted in the Department of Microbiology, Medical Research Institute, University of Alexandria, A.R. Egypt