1. State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong 999077, China
2. Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 7, 9747AG Groningen, Netherlands
3. TC College Promotion Office, Open Facility Center, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan