A Guaianolide Sulfate Conjugate and Other Constituents from Taraxacum alpinum

The new guaianolide 8-deacetylmatricarin-8-O-sulfate conjugate in free acid and crystalline sodium salt forms, along with six known sesquiterpene lactones and three known phenolics were isolated from Taraxacum alpinum. The compounds were characterized by chemical and spectral methods. This is the first report on sulfated sesquiterpene lactones from Taraxacum species.