Ting, Pauline C.; Lee, Joe F.; Zorn, Nicolas; Kim, Hyunjin M.; Aslanian, Robert G.; Lin, Mingxiang; Smith, Michelle; Walker, Scott S.; Cook, John; Van Heek, Margaret; Lachowicz, Jean Bioorganic and Medicinal Chemistry Letters, 2013, vol. 23, # 4 p. 985 - 988 doi: 10.1016/j.bmcl.2012.12.040