參考文獻:
Stevens, F. Craig Bloomquist, William E. Borel, Anthony G. Cohen, Marlene L. Droste, Christine A. Heiman, Mark L. Kriauciunas, Aidas Sall, Daniel J. Tinsley, Frank C. Jesudason, Cynthia D. Bioorganic and Medicinal Chemistry Letters, 2007 , vol. 17, # 22 p. 6270 - 6273