參考文獻:
Swahn, Britt-Marie Wensbo, David Sandell, Johan Sohn, Daniel Slivo, Can Pyring, David Malmstroem, Jonas Arzel, Erwan Vallin, Michaela Bergh, Margareta Jeppsson, Fredrik Johnson, Allan E. Jureus, Anders Neelissen, Jan Svensson, Samuel Bioorganic and Medicinal Chemistry Letters, 2010 , vol. 20, # 6 p. 1976 - 1980