参考文献:
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