参考文献:
Clark, Rachel L. Carter, Katharine C. Mullen, Alexander B. Coxon, Geoffrey D. Owusu-Dapaah, George McFarlane, Emma Duong Thi, M. Dao Grant, M. Helen Tettey, Justice N.A. Mackay, Simon P. Bioorganic and Medicinal Chemistry Letters, 7 , vol. 17, # 3 p. 64 - 67