1. Natural Product Biosynthesis Research Unit, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
2. Chemical Resource Development Unit, REKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
3. Molecular Structure Characterization Unit, Technology Platform Division, REKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
4. Graduate School of Science and Engineering, Saitama University; Shimo-Okubo 255, Sakura-ku, Saitama-shi, Saitama 338-8570, Japan