New sesquiterpene lactone and other constituents from Centaurea sulphurea (Asteraceae).
Five known flavonoids (1-5) and three sesquiterpene lactones (6-8) are reported for the first time from the endemic species Centaurea sulphurea Willd. (Asteraceae). Compound 7 is a new heliangolide (6R, 7R, 8S, 3'R)-8alpha-(3',4'-dihydroxy-methylene-2'-butanoyloxy)-15-oxo-helianga-1 (10), 4(5), 11(13)-trien-6,12-olide, named as sulphurein.
Lakhal
Hichem
H
Laboratoire d'Obtention de Substances Thérapeutiques (L.O.S.T), Faculté des sciences, Université Mentouri - Constantine, Campus Chaabat Ersas, 25000 Constantine, Algeria.
Boudiar
Tarek
T
Kabouche
Ahmed
A
Kabouche
Zahia
Z
Touzani
Rachid
R
Bruneau
Christian
C
D031179:Centaurea / Q000737:chemistry*; D005419:Flavonoids / Q000737:chemistry*; D015394:Molecular Structure; D012717:Sesquiterpenes / Q000737:chemistry*
D005419:Flavonoids; D012717:Sesquiterpenes; C551421:sulphureidin