1. College of Humanities and Sciences, Nihon University, Setagaya-ku, Tokyo, 156-8550, Japan
2. Chemical Genomics Research Group, RIKEN CSRS, Saitama, 351-0198, Japan
3. Department of Chemistry, Rikkyo University, Toshima-ku, Tokyo 171-8501, Japan
4. Kunming Institute of Botany, Chinese Academy of Science, Kunming, 654202, China