Chemical Constituents of Mentha haplocalyx
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Mentha haplocalyx Briq. belongs to the genus Mentha (family Labiatae). Its aerial parts are used as traditional medicine in China for the treatment of the common cold, headache, aphtha, rubella, measles, and inflammatory diseases [1, 2]. The chemical and biological investigation of the constituents of M. haplocalyx have been actively studied, as represented by [3, 4, 5, 6]. During our previous phytochemical investigation of this plant, we have reported several phenylpropanoids, monoterpenoids, polyphenolic acids, and flavonoids from the aqueous extract of M. haplocalyx. To discover more interesting molecules from M. haplocalyx, a phytochemical investigation was carried out. Our current chemical analysis of the 70% ethanol extract of the aerial parts of M. haplocalyx has led to 19 compouds, including six terpenoid glycosides, which were the representative and potential bioactive chemical constituents of the family Labiatae [7, 8, 9], six flavonoids, three phenylpropanoids, two phenolic...
This work was financially supported by the following grants: National Natural Science Foundation of China (No. 81173520), the Research Fund for the Doctoral Program of Higher Education of China (No. 20100013110002), and the Research Fund for Self-Selected Topic of Beijing University of Chinese Medicine (No. 0100600122).
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