参考文献:
Zhang, Lei Rogers, Bruce N. Duplantier, Allen J. McHardy, Stanley F. Efremov, Ivan Berke, Helen Qian, Weimin Zhang, Andy Q. Maklad, Noha Candler, John Doran, Angela C. Lazzaro Jr., John T. Ganong, Alan H. Bioorganic and Medicinal Chemistry Letters, 28 , vol. 8, # 2 p. 593 - 596