Fischer Dirk, Tomeba Hisamitsu, Pahadi Nirmal K, Patil Nitin T, Yamamoto Yoshinori
Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan.
Angew Chem Int Ed Engl. 2007;46(25):4764-6. doi: 10.1002/anie.200701392.