1. (a) Present address: Sandoz, Inc., E. Hanover, NJ 07936.
2. (b) Vestec Corp., Houston, TX 77054.
3. (c) The Clorox Company, Pleasanton, CA 94566.
4. (d) Pfizer Chemicals, Groton, CT.
5. (e) University of Gdansk, Institute of Chemistry, Gdansk 6, Sobieskiego, Poland,