4 结果
Chamazulene carboxylic acid (1) is a natural profen with anti-inflammatory activity and a degradation product of proazulenic sesquiterpene lactones, e.g., matricin. Both 1 and proazulenes occur in chamomile (Matricaria recutita), yarrow (Achillea millefolium), and a few other Asteraceae species. It
Known determinations of the absolute configuration of guaianolides were collected and found to be few. The absolute configurations of guaianolides rest on the assumption that 7-H always has alpha-orientation. For matricin, only the relative configuration was determined. On the basis of a detailed
From the aerial parts of Achillea setacea W. & K. (Asteraceae) the main sesquiterpenes were isolated. Their structures were determined by means of 2D-NMR and MS as 11,13-dehydrodeacetylmatricarin (1) (= 14-deoxylactucin), rupicolin A (2), and rupicolin B (3). These are the first compounds with an
Three of the four major Anglo-Saxon collections reporting medicinal formulations in England from the 10th century, the Old English Herbarium, Bald's Leechbook and the Lacnunga, could contain leads and insights into new medicinal uses. Previous pharmacological studies of medicinal plants mentioned in