Hagen; Domagala; Gajda; Lovdahl; Tait; Wise; Holler; Hupe; Nouhan; Urumov; Zeikus; Lunney; Pavlovsky; Gracheck; Saunders; VanderRoest; Brodfuehrer Journal of Medicinal Chemistry, 2001 , vol. 44, # 14 p. 2319 - 2332