1. Institute of Traditional Chinese Medicine & Natural ProductsCollege of PharmacyJinan University Guangzhou 510632 P. R. China
2. Guangdong Province Key Laboratory of Pharmacodynamic Constituents of, TCM and New Drugs ResearchJinan University Guangzhou 510632 P. R. China
3. Institute of Fruit Tree ResearchGuangdong Academy of, Agricultural Sciences Guangzhou 510640 P. R. China
4. State Key Laboratory for Conservation and Utilization of, Subtropical Agro-bioresourcesSouth China Agricultural University Guangzhou 510642 P. R. China
5. Department of ChemistrySouth University of Science and Technology of China Shenzhen 518055 P. R. China