1. State Key Laboratory
for Chemistry and Molecular Engineering of Medicinal Resources, School
of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, People’s Republic of China
2. College of Pharmacy, Guilin Medical University, Guilin 541004, People’s Republic of China
3. State Key Laboratory of Bioactive Substance and Function
of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People’s Republic of China