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Updated: Jun 12, 2025
Biosynthesis of a Flavonol from a Flavanone by Establishing a One-pot Bienzymatic Cascade
Published on: August 14, 2019
Three new flavonoid glycosides from the herbaceous stems of Ephedra intermedia
Ying Niu1,2, Yan-Gang Cao1,2, Yan-Ling Liu1,2
1School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China.
Abstract:
Phytochemical investigation of the n-butanol extracts of the herbaceous stems of Epheda intermedia led to the isolation of eight flavonoids that included three new flavonoid glycosides (1-3) and five previously reported analogues (4-8). Their structures have been identified on the basis of various spectral data. Besides, all the flavonoids were tested in vitro for their ability to inhibit α-glucosidase under the positive control of acarbose, and the results indicated that none of them exhibited significant inhibitory effect on α-glucosidase at 100 μM.
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