參考文獻:
Combrink, Keith D. Gulgeze, H. Belgin Yu, Kuo-Long Pearce, Bradley C. Trehan, Ashok K. Wei, Jianmei Deshpande, Milind Krystal, Mark Torri, Albert Luo, Guangxiang Cianci, Christopher Danetz, Stephanie Tiley, Laurence Meanwell, Nicholas A. Bioorganic and Medicinal Chemistry Letters, 2000 , vol. 10, # 15 p. 1649 - 1652