参考文献:
Tran, Tuan P. Ellsworth, Edmund L. Watson, Brian M. Sanchez, Joseph P. Showalter, H. D. Hollis Rubin, John R. Stier, Michael A. Yip, Judy Nguyen, Dai Q. Bird, Paul Singh, Rajeshwar Journal of Heterocyclic Chemistry, 2005 , vol. 42, # 4 p. 669 - 674