参考文献:
Gregson, Stephen J. Howard, Philip W. Gullick, Darren R. Hamaguchi, Anzu Corcoran, Kathryn E. Brooks, Natalie A. Hartley, John A. Jenkins, Terence C. Patel, Sejal Guille, Matthew J. Thurston, David E. Journal of Medicinal Chemistry, 2004 , vol. 47, # p. 6 - 74