Kaga, Harumi; Goto, Kouhei; Takahashi, Tomiki; Hino, Masao; Tokuhashi, Takashi; Orito, Kazuhiko
Tetrahedron, 1996 , vol. 52, # 25 p. 8451 - 8470

Brown, Herbert C.; Rangaishenvi, Milind V.
Tetrahedron Letters, 1990 , vol. 31, # 45 p. 7115 - 7118