Herron, David K.; Goodson, Theodore; Bollinger, Nancy G.; Swanson-Bean, Dorothy; Wright, Ian G.; et al.
Journal of Medicinal Chemistry, 1992 , vol. 35, # 10 p. 1818 - 1828

Hao, Xiuhua; Yoshida, Akihiro; Nishikido, Joji
Tetrahedron Letters, 2005 , vol. 46, # 15 p. 2697 - 2700

Booth, Brian L.; Noori, Ghazi F.M.
Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1980 , p. 2894 - 2900