Shibatomi, Kazutaka; Soga, Yoshinori; Narayama, Akira; Fujisawa, Ikuhide; Iwasa, Seiji
Journal of the American Chemical Society, 2012 , vol. 134, # 24 p. 9836 - 9839

Sato, Masayuki; Ban, Hitoshi; Kaneko, Chikara
Tetrahedron Letters, 1997 , vol. 38, # 38 p. 6689 - 6692