Baqi, Younis; Lee, Sang-Yong; Iqbal, Jamshed; Ripphausen, Peter; Lehr, Anne; Scheiff, Anja B.; Zimmennann, Herbert; Bajorath, Juergen; Mueller, Christa E. Journal of Medicinal Chemistry, 2010 , vol. 53, # 5 p. 2076 - 2086