Flavonoids and nor-sesquiterpenes of Pedicularis densispica / 中国中药杂志

<p><b>OBJECTIVE</b>To study the chemical constituents of the whole plants of Pedicularis densispica.</p><p><b>METHOD</b>The chemical constituents were isolated by various chromatographic methods and their structures were determined by chemical evidences and spectral data.</p><p><b>RESULT</b>Ten compounds were isolated and identified as acacetin (1), apigenin-7-0-beta-glucopyranoside (2), kaempferol-3,7-O-alpha-dirhamnopyranoside (3), scutellarein-7-0-beta-glucopyranoside (4), chrysoeriol-7-O-beta-glucopyranoside (5), pedicutricone A (6), dearabinosyl pneumonanthoside (7), salidroside (8), darendoside B (9), and maltol-beta-D-glucopyranoside (10).</p><p><b>CONCLUSION</b>These compounds were isolated from the titled plant for the first time. Except compounds 6 and 8, the others were obtained for the first time from the genus Pedicularis.</p>

Progress in research on Pedicularis plants / 中国中药杂志

Pedicularis comprises about 300 species in China and hemiparasite is its most important characteristic. Many compounds have been isolated from the genus, including phenylpropanoids, iridoids, flavonoids and so on. Among them, some showed antioxidative, antitumor, antifatigue, repairing DNA and antidiabetic activities. This review summarized hemiparasite, chemical constituents and pharmacological activities on Pedicularis plants. The aim was to provide information for the further study of Pedicularis.