参考文献:
Epple, Robert Russo, Ross Azimioara, Mihai Cow, Christopher Xie, Yongping Wang, Xing Wityak, John Karanewsky, Don Gerken, Andrea Iskandar, Maya Saez, Enrique Martin Seidel Tian, Shin-Shay Bioorganic and Medicinal Chemistry Letters, 006 , vol. 6, # 6 p. 476 - 480