1. The Key Laboratory of Plant Resources and Chemistry of Arid Zone and State Key Laboratory Basis of Xinjiang Indigenous Medicinal Plants Resource Utilization, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi, P. R. China;
2. Department of Chemistry, Faculty of Natural Sciences, Namangan State University, Namangan, Republic of Uzbekistan
3. S. Yu. Yunusov Institute of the Chemistry of Plant Substances, Academy of Sciences, Tashkent, Republic of Uzbekistan;