Filzen, Gary F.; Bratton, Larry; Cheng, Xue-Min; Erasga, Noe; Geyer, Andrew; Lee, Chitase; Lu, Gina; Pulaski, Jim; Sorenson, Roderick J.; Unangst, Paul C.; Trivedi; Xu, Xiangyang Bioorganic and Medicinal Chemistry Letters, 2007 , vol. 17, # 13 p. 3630 - 3635