參考文獻:
Pasternak, Alexander Goble, Stephen D. deJesus, Reynalda K. Hreniuk, Donna L. Chung, Christine C. Tota, Michael R. Mazur, Paul Feighner, Scott D. Howard, Andrew D. Mills, Sander G. Yang, Lihu Bioorganic and Medicinal Chemistry Letters, 2009 , vol. 19, # 21 p. 6237 - 6240