Huang, Dehua; Poon, Steve F.; Chapman, Deborah F.; Chung, Janice; Cramer, Merryl; Reger, Thomas S.; Roppe, Jeffrey R.; Tehrani, Lida; Cosford, Nicholas D.P.; Smith, Nicholas D. Bioorganic and Medicinal Chemistry Letters, 2004 , vol. 14, # 22 p. 5473 - 5476