參考文獻:
Powers, Jay P. Piper, Derek E. Li, Yang Mayorga, Veronica Anzola, John Chen, James M. Jaen, Juan C. Lee, Gary Liu, Jinqian Peterson, M. Greg Tonn, George R. Ye, Qiuping Walker, Nigel P. C. Wang, Zhulun Journal of Medicinal Chemistry, 2006 , vol. 49, # 3 p. 1034 - 1046