Kim, Soong-Hoon; Pudzianowski, Andrew T.; Leavitt, Kenneth J.; Barbosa, Joseph; McDonnell, Patricia A.; Metzler, William J.; Rankin, Bruce M.; Liu, Richard; Vaccaro, Wayne; Pitts, William Bioorganic and Medicinal Chemistry Letters, 2005 , vol. 15, # 4 p. 1101 - 1106