1. Synthetic Organic Chemistry Laboratory, The Institute of Physical and Chemical Research (RIKEN), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan, PRESTO, Japan Science and Technology Corporation, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan, Department of Chemistry, Faculty of Science, Ochanomizu University, 2-1-1 Otsuka, Bunkyo-ku, Tokyo 112-8610, Japan, and Department of Knowledge-Based Information Engineering, Toyohashi University of Technology, 1-1 Tempaku, Toyohashi, Aichi 441-8580, Japan