參考文獻:
Bishop, Michael J. Barvian, Kevin A. Berman, Judd Bigham, Eric C. Garrison, Deanna T. Gobel, Michael J. Hodson, Stephen J. Irving, Paul E. Liacos, James A. Navas, Iii, Frank Saussy Jr., David L. Speake, Jason D. Bioorganic and Medicinal Chemistry Letters, 2002 , vol. 12, # 3 p. 471 - 475