Affiliation: | 1. State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650204 (China), Fax: (+86)?871‐522‐3354;2. Departments of Chemistry and Biochemistry, The Ohio State University, 484 West 12th Avenue, Columbus, OH 43210 (USA), Fax: (+1)?614‐688‐3106;3. ;4. Division of Developmental Immunology, La Jolla Institute for Allergy and Immunology, 10355 Science Center Drive, San Diego, CA 92121 (USA);5. College of Pharmacy and State Key Laboratory of Element‐Organic, Chemistry, Nankai University, Tianjin 300071 (China) |