1. Key
Laboratory of Tobacco Chemistry of Yunnan Province, China Tobacco Yunnan Industrial Co., Ltd., Kunming 650231, People’s Republic of China
2. Key
Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic
Affairs Commission and Ministry of Education, Yunnan University of Nationalities, Kunming 650031, Yunnan, People’s Republic of China
3. State
Key Laboratory of Phytochemistry and Plant Resources in West China,
Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan People’s Republic of China
4. Department
of Medicinal Chemistry and Pharmacognosy and WHO Collaborating Center
for Traditional Medicine, College of Pharmacy, University of Illinois at Chicago, Chicago, Illinois 60612, United States