Xia, Yan; Chackalamannil, Samuel; Greenlee, William J.; Jayne, Charles; Neustadt, Bernard; Stamford, Andrew; Vaccaro, Henry; Xu, Xiaoying; Baker, Hana; O'Neill, Kim; Woods, Morgan; Hawes, Brian; Kowalski, Tim Bioorganic and Medicinal Chemistry Letters, 2011 , vol. 21, # 11 p. 3290 - 3296