1. Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi, People’s Republic of China
2. School of Pharmacy, Nantong University, Nantong 226001, Jiangsu, People’s Republic of China
3. School of Pharmacy, Xinxiang Medical University, Xinxiang 453003, Henan, People’s Republic of China
4. Department of Chemistry, University at Albany, State University of New York, Albany, New York 12222, United States
5. Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Pisa 56124, Italy