Ikawa, Takashi; Takagi, Akira; Goto, Masahiko; Aoyama, Yuya; Ishikawa, Yoshinobu; Itoh, Yuji; Fujii, Satoshi; Tokiwa, Hiroaki; Akai, Shuji Journal of Organic Chemistry, 2013, vol. 78, # 7 p. 2965 - 2983 doi: 10.1021/jo302802b