参考文献:
Amtul, Zareen Kausar, Naheed Follmer, Cristian Rozmahel, Richard F. Atta-Ur-Rahman Kazmi, Syed Arif Shekhani, Mohammed Saleh Eriksen, Jason L. Khan, Khalid M. Choudhary, Mohammad Iqbal Bioorganic and Medicinal Chemistry, 006 , vol. 1, # 19 p. 677 - 67