Studies on the Chemical Constituents of Lagotis Brachystachya Maxim

Chem. J. Chinese Universities ›› 1989, Vol. 10 ›› Issue (3): 260.

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Studies on the Chemical Constituents of Lagotis Brachystachya Maxim

Chen Yaozu, Zhang Huidi, Zhang Suoming, Yang Qinghua

Department of Chemistry, Lanzhou University, Lanzhou

Received:1987-10-22 Online:1989-03-24 Published:1989-03-24

Abstract

Abstract: A new flavonoid named lagotiside (2) was isolated from Lagotis brachystachya Maxim. The structure of lagotiside C₂₃H₂₄O₁₂, m.p. 235℃, was elucidated as (3,5-dihydroxy-3',5'-dimethoxyflavone-7-O-glucoside) by spectral analysis and chemical methods. 3, 5, 7-trihydroxy-3', 5'-dimethoxyflavone, Chrysoeriol, 3-phenyl-2-propenoic acid, n-tetracosanic acid, BBBB-sitosterol, D-galactose were isolated and identified also.

Key words: Tibetan herbs, Lagotis brachystachya Maxim, Flavonoid, Lagotiside, Cbrysoeriol

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Chen Yaozu, Zhang Huidi, Zhang Suoming, Yang Qinghua . Studies on the Chemical Constituents of Lagotis Brachystachya Maxim[J]. Chem. J. Chinese Universities, 1989, 10(3): 260.

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Studies on the Chemical Constituents of Lagotis Brachystachya Maxim

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