Nishida, Yoshihiro; Ohrui, Hiroshi; Meguro, Hiroshi; Ishizawa, Minoru; Matsuda, Kazuhiro; Taki, Takao; Handa, Shizuo; Yamamoto, Naoki Tetrahedron Letters, 1994, vol. 35, # 30 p. 5465 - 5468 doi: 10.1016/S0040-4039(00)73526-X