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

ABSTRACT

<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>