參考文獻:
Pajouhesh, Hassan Feng, Zhong-Ping Ding, Yanbing Zhang, Lingyun Pajouhesh, Hossein Morrison, Jerrie-Lynn Belardetti, Francesco Tringham, Elizabeth Simonson, Eric Vanderah, Todd W. Porreca, Frank Zamponi, Gerald W. Mitscher, Lester A. Snutch, Terrance P. Bioorganic and Medicinal Chemistry Letters, 2010 , vol. 20, # 4 p. 1378 - 1383