Institution: | 1. Department of Chemistry , University of Illinois at Urbana-Champaign , Urbana, Illinois, 61801, USA;2. Department of Chemistry , University of Illinois at Urbana-Champaign , Urbana, Illinois, 61801, USA;3. Procter &4. Gamble Pharmaceuticals, Miami Valley Laboratories , P. O. Box 538707, Cincinnati, Ohio, 45253, USA |