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Abstract A new derivative of syringic acid, stageobester A (1) and two iridoid glycosides which including a new one, stageoboside A (2), were isolated from the roots of Stachys geobombycis.… Click to show full abstract
Abstract A new derivative of syringic acid, stageobester A (1) and two iridoid glycosides which including a new one, stageoboside A (2), were isolated from the roots of Stachys geobombycis. Their structures were elucidated on the basis of spectroscopic methods, including extensive NMR and MS spectra. In addition, all the isolates were tested for their antioxidant capacity. Compounds 1 and 2 showed moderate antioxidant activities against DPPH radical, with IC50 values of 113.33 ± 1.53 and 40.33 ± 2.08 mg/L, respectively.
Keywords:
antioxidant;
stachys geobombycis;
syringic acid;
two iridoid;
iridoid glycosides;
roots stachys
Journal Title: Natural Product Research
Year Published: 2019
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Journal Title: Natural Product Research
Year Published: 2019
Link to full text (if available)
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recommendations!