Lagu, Bharat; Gerchak, Chrissy; Pan, Meng; Hou, Cuifen; Singer, Monica; Malaviya, Ravi; Matheis, Michele; Olini, Gil; Cavender, Druie; Wachter, Michael Bioorganic and Medicinal Chemistry Letters, 2007 , vol. 17, # 15 p. 4382 - 4386