Okamura, Hiroaki; Kuroda, Satoru; Ikegami, Satoru; Tomita, Kenji; Sugimoto, Yu-ichi; et al.
Tetrahedron, 1993 , vol. 49, # 46 p. 10531 - 10554

Tsuboi, Katsunori; Ichikawa, Yoshiyasu; Naganawa, Atsushi; Isobe, Minoru; Ubukata, Makoto; Isono, Kiyoshi
Tetrahedron, 1997 , vol. 53, # 14 p. 5083 - 5102

Journal of the Chemical Society, Chemical Communications, , # 18 p. 1344 - 1345