Lee, Chih-Hung; Daanen, Jerome F; Jiang, Meiqun; Yu, Haixia; Kohlhaas, Kathy L; Alexander, Karen; Jarvis, Michael F; Kowaluk, Elizabeth L; Bhagwat, Shripad S Bioorganic and Medicinal Chemistry Letters, 2001, vol. 11, # 18 p. 2419 - 2422 doi: 10.1016/S0960-894X(01)00454-1