Li, Qun; Wang, Weibo; Berst, Kristine B.; Claiborne, Akiyo; Hasvold, Lisa; Raye, Kathleen; Tufano, Michael; Nilius, Angela; Shen, Linus L.; Flamm, Robert; Alder, Jeff; Marsh, Kennan; Crowell, DeAnne; Chu, Daniel T.W.; Planner, Jacob J. Bioorganic and Medicinal Chemistry Letters, 1998 , vol. 8, # 15 p. 1953 - 1958