Tokuyama, Hidetoshi; Yamada, Kaori; Fujiwara, Hideto; Sakata, Juri; Okano, Kentaro; Sappan, Malipan; Isaka, Masahiko Journal of Organic Chemistry, 2017, vol. 82, # 1 p. 353 - 371 doi: 10.1021/acs.joc.6b02452