A new flavonoid glycoside, apigenin 7-O-(2,4-di-O-acetyl)-α-L-rhamnopyranosyl-(1→6)-β-D-glucopyranoside (1), was isolated from the 95% EtOH extract of Galium verum L. by repeated column chromatography. Its structure was identified by spectral analyses and chemical methods. In addition, the rat intestinal α-glucosidase inhibitory activity of compound 1 was evaluated in vitro.
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Acknowledgment
This work was supported by grants from the National Natural Science Foundation of China (No. 31201563) and the open foundation of Green Pesticides and Biotechnology Key Laboratory of Guizhou University of the Ministry of Education (2017GDGP0102/2017GDGP0103). We are also grateful to Prof. Qishi Sun, Shenyang Pharmaceutical University, for the identification of the plant.
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Published in Khimiya Prirodnykh Soedinenii, No. 1, January–February, 2020, pp. 63–64.
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Zhang, XH., Shen, J., Zhao, CC. et al. A New Flavonoid Glycoside with α-Glucosidase Inhibitory Activity from Galium Verum. Chem Nat Compd 56, 67–69 (2020). https://doi.org/10.1007/s10600-020-02945-z
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DOI: https://doi.org/10.1007/s10600-020-02945-z