Ngu, Khehyong; Weinstein, David S.; Liu, Wen; Langevine, Charles; Combs, Donald W.; Zhuang, Shaobin; Chen, Xing; Madsen, Cort S.; Harper, Timothy W.; Ahmad, Saleem; Robl, Jeffrey A.
Bioorganic and Medicinal Chemistry Letters, 2011 , vol. 21, # 14 p. 4141 - 4145