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Abstract
Cynomorium songaricum Rupr. (CSR), an edible and medicinal material, is widely cultivated in desert regions of Eastern and Western Asia, Europe, and North Africa. Ten glycoside constituents 1–10 including one new songaricumone A (1) were isolated from the fresh C. songaricum. Their structures were elucidated by comprehensive NMR data analysis. Further, various antioxidant effects of isolated compounds (1–3 and 5–10) were comprehensively and comparatively investigated. In conclusion, it is obvious that different glycosides vary significantly toward different sources of free radicals, which are attributed to different aglycones and substituted positions of sugar unit in structures.
Graphical Abstract
Disclosure statement
The authors declare no competing financial interest.
Additional information
Funding
This study was financially supported by the Natural Science Fund of Guangdong Province, China (2020A1515110093), the National Key R&D Program of China (2020YFC2003100, 2020YFC2003101), the Natural Science Foundation of Guangdong Province, China (2017A030313722, 2018A0303130320, 2018A030313375), and the Science & Technical Plan of Guangzhou, Guangdong, China (201903010069).