参考文献:
Li, Zhen Chen, Weirong Hale, Jeffrey J. Lynch, Christopher L. Mills, Sander G. Hajdu, Richard Keohane, Carol Ann Rosenbach, Mark J. Milligan, James A. Shei, Gan-Ju Chrebet, Gary Parent, Stephen A. Bergstrom, James Card, Deborah Forrest, Michael Quackenbush, Elizabeth J. Wickham, L. Alexandra Vargas, Hugo Evans, Rose M. Rosen, Hugh Mandala, Suzanne Journal of Medicinal Chemistry, 005 , vol. 48, # 0 p. 669 - 673