1. International Collaborative Research Center of Tianjin for Food Nutrition, Safety and Medicinal Chemistry; College of Biotechnology, Tianjin University of Science & Technology; Tianjin 300457 China
2. Department of Chemistry; Taiyuan Normal University; Taiyuan 030031 China
3. 26 Canyon View Ave. Cody WY 82413 USA
4. 513 6th Street Cody WY 82414 USA
5. Department of Chemistry; Louisiana State University; Baton Rouge LA 70803 USA
6. Key Laboratory of Chemical Biology and Molecular Engineering of the Education Ministry, Institute of Molecular Science; Shanxi University; Taiyuan 030006 China