参考文献

Zhao, Gang; Iyengar, Rajesh R.; Judd, Andrew S.; Cool, Barbara; Chiou, William; Kifle, Lemma; Frevert, Ernst; Sham, Hing; Kym, Philip R. Bioorganic and Medicinal Chemistry Letters, 2007 , vol. 17, # 12 p. 3254 - 3257