Hayashi, Yujiro; Gotoh, Hiroaki; Honma, Masakazu; Sankar, Kuppusamy; Kumar, Indresh; Ishikawa, Hayato; Konno, Kohzo; Yui, Hiroharu; Tsuzuki, Seiji; Uchimaru, Tadafumi Journal of the American Chemical Society, 2011, vol. 133, # 50 p. 20175 - 20185 doi: 10.1021/ja108516b