1. State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, People’s Republic of China, Graduate School of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China, College of Pharmacy, Hunan University of Traditional Chinese Medicine, Changsha 410007, People’s Republic of China, and Department of Hematology, The First People’s Hospital of Yunnan Province, Kunming 650032, People’s Republic of China