Becker, Michael R.; Ewing, William R.; Davis, Roderick S.; Pauls, Henry W.; Ly, Cuong; Li, Aiwen; Mason, Helen J.; Choi-Sledeski, Yong Mi; Spada, Alfred P.; Chu, Valeria; Brown, Karen D.; Colussi, Dennis J.; Leadley, Robert J.; Bentley, Ross; Bostwick, Jeff; Kasiewski, Charles; Morgan, Suzanne Bioorganic and Medicinal Chemistry Letters, 1999 , vol. 9, # 18 p. 2753 - 2758