Sakai, Yasuo; Ohtani, Masaru; Tobe, Yoshito; Odaira, Yoshinobu
Tetrahedron Letters, 1980 , vol. 21, p. 5025 - 5026

Tobe, Yoshito; Ohtani, Masaru; Kakiuchi, Kiyomi; Odaira, Yoshinobu
Tetrahedron Letters, 1983 , vol. 24, # 34 p. 3639 - 3642