Sawada Yuji, Matsumoto Kazuhiro, Katsuki Tsutomu
Department of Chemistry, Faculty of Science, Graduate School, Kyushu University, Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan.
Angew Chem Int Ed Engl. 2007;46(24):4559-61. doi: 10.1002/anie.200700949.