Olguin, Luis F.; Jimenez-Estrada, Manuel; Barzana, Eduardo; Navarro-Ocana, Arturo
Synlett, 2005 , # 2 art. no. S09204ST, p. 340 - 342

Fife, Thomas H.; Bembi, Ramesh
Journal of the American Chemical Society, 1993 , vol. 115, # 24 p. 11358 - 11363