1. Key
Laboratory of Tropical Medicinal Plant Chemistry of Ministry of Education, Hainan Normal University, Haikou 571158, People’s Republic of China
2. College
of Pharmaceutical Science, Zhejiang University, Hangzhou 310058, People’s Republic of China
3. Hainan Boying Orchid Industrial Development Co., LTD, Haikou 570105, People’s Republic of China