Kajiyama, Shin-Ichiro; Irie, Kazuhiro; Kido, Takae; Koshimizu, Koichi; Hayashi, Hideo; Arai, Motoo Tetrahedron, 1991, vol. 47, # 29 p. 5453 - 5462 doi: 10.1016/S0040-4020(01)80978-9