Kitagawa; Nishimura Takeuchi; Okamoto
Tetrahedron Letters, 1991 , vol. 32, # 27 p. 3187 - 3190

Takeuchi, Ken'ichi; Murai, Osamu; Matsui, Shin; Inoue, Takeshi; Kitagawa, Toshikazu; Okamoto, Kunio
Journal of the Chemical Society, Perkin Transactions 2: Physical Organic Chemistry (1972-1999), 1983 , # 9 p. 1301 - 1310

Okamoto, Kunio; Takeuchi, Ken'ichi; Murai, Osamu; Matsui, Shin; Inoue, Takeshi; Kitagawa, Toshikazu
Tetrahedron Letters, 1981 , vol. 22, # 29 p. 2785 - 2788

Takeuchi, Ken'ichi; Murai, Osamu; Matsui, Shin; Inoue, Takeshi; Kitagawa, Toshikazu; Okamoto, Kunio
Journal of the Chemical Society, Perkin Transactions 2: Physical Organic Chemistry (1972-1999), 1983 , # 9 p. 1301 - 1310