Wu, Wen-Lian; Burnett, Duane A.; Caplen, Mary Ann; Domalski, Martin S.; Bennett, Chad; Greenlee, William J.; Hawes, Brian E.; O'Neill, Kim; Weig, Blair; Weston, Daniel; Spar, Brian; Kowalski, Timothy Bioorganic and Medicinal Chemistry Letters, 2006 , vol. 16, # 14 p. 3674 - 3678