Shibata Takanori, Chiba Tatsuya, Hirashima Hiroyuki, Ueno Yasunori, Endo Kohei
Department of Chemistry and Biochemistry, Faculty of Advanced Science and Engineering, Waseda University, Okubo, Shinjuku, Tokyo 169-8555, Japan.
Angew Chem Int Ed Engl. 2009;48(43):8066-9. doi: 10.1002/anie.200903715.