Hasegawa, Eietsu; Takizawa, Shinya; Seida, Takayuki; Yamaguchi, Akira; Yamaguchi, Naoto; Chiba, Naoki; Takahashi, Tomoya; Ikeda, Hiroshi; Akiyama, Kimio
Tetrahedron, 2006 , vol. 62, # 27 p. 6581 - 6588