参考文献:
Walker, Michael A. Johnson, Timothy Naidu, B. Narasimhulu Banville, Jacques Remillard, Roger Plamondon, Serge Martel, Alain Li, Chen Torri, Albert Samanta, Himadri Lin, Zeyu Dicker, Ira Krystal, Mark Meanwell, Nicholas A. Bioorganic and Medicinal Chemistry Letters, 2007 , vol. 17, # 17 p. 4886 - 4890