Maki, Keisuke; Motoki, Rie; Fujii, Kunihiko; Kanai, Motomu; Kobayashi, Takayasu; Tamura, Shinri; Shibasaki, Masakatsu Journal of the American Chemical Society, 2005, vol. 127, # 48 p. 17111 - 17117 doi: 10.1021/ja0562043