1. Chemical
Biology Research Group, RIKEN Centre for Sustainable Resource Science, Hirosawa, 2-1, Wako, Saitama 351-0198, Japan
2. Graduate
School of Science and Engineering, Saitama University, Saitama 338-8570, Japan
3. Natural
Product Biosynthesis Research Unit, RIKEN Centre for Sustainable Resource Science, Hirosawa 2-1, Wako, Saitama 351-0198, Japan
4. Pharmaceutical
Sciences, University of Kentucky, 789 S Limestone Street, Lexington, Kentucky 40536-0596, United States