New glycosides of baicalein (1–4) and wogonin (5 and 6) were found by studying phenolic compounds from roots of Scutellaria baicalensis Georgi (Lamiaceae) grown with treatment by 24-epibrassinolide. The new compounds were baicalein 7-O-(2′′-O-β-D-glucosyl)-β-D-glucuronopyranoside (scutellariside III, 1), baicalein 6-O-β-D-glucopyranoside-7-O-(2′′-O-β-D-glucosyl)-β-D-glucoronopyranoside (scutellariside IV, 2), baicalein 6-O-β-D-glycopyranosyl-7-O-β-D-glucuronopyranoside (scutellariside V, 3), baicalein 7-O-(2′′-O-malonyl)-β-D-glucuronopyranoside (scutellariside VI, 4), wogonin 7-O-(2′′-O-β-D-glucosyl)-β-D-glucuronopyranoside (scutellariside VII, 5), and wogonin 7-O-(2′′-O-malonyl)-β-D-glucuronopyranoside (scutellariside VIII, 5) according to UV and NMR spectroscopic and mass spectrometric data.
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Acknowledgment
The research was supported by the Ministry of Science and Higher Education of the Russian Federation in the framework of Science Projects Nos. 121030100227-7 and FSRG-2023-0027.
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Translated from Khimiya Prirodnykh Soedinenii, No. 2, March–April, 2024, pp. 202–206.
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Olennikov, D.N., Chirikova, N.K. New Flavonoids of the Genus Scutellaria. II. Baicalein and Wogonin Glycosides from S. baicalensis. Chem Nat Compd 60, 229–234 (2024). https://doi.org/10.1007/s10600-024-04294-7
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DOI: https://doi.org/10.1007/s10600-024-04294-7