Hayashi, Yujiro; Shoji, Mitsuru; Mukaiyama, Takasuke; Gotoh, Hiroaki; Yamaguchi, Shinpei; Nakata, Munetaka; Kakeya, Hideaki; Osada, Hiroyuki Journal of Organic Chemistry, 2005, vol. 70, # 14 p. 5643 - 5654 doi: 10.1021/jo050664x