1. State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources
2. School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University
3. Guilin 541004
4. People's Republic of China
5. Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases of Ministry of Education
6. Gannan Medical University
7. Ganzhou 341000
8. School of Pharmaceutical Science
9. Ganzhou
10. P. R. China