Etude phytochimique d’une plante medicinale de l’est Algerien

Abstract

Our objective through the present study is to rein vestigate one famous plant used tremendously in our folk medicine, namely Artemisia herba-alba. In spite of the numerous studies so far carried out on the consider ed plant, our chemical screening revealed two new sesquiterpene lactones involved in methylene chloride/methanol extract of the aerial parts. The afforded new natur al sesquiterpene lactones are 1b,9b- diacetoxyeudesm-3-en-5a,6b,11bH-12,6-olide (1) and 1b,9b-diacetoxyeudesm-4-en- 6b,11bH-12,6-olide (2) together with 4 known compounds. The structures of the compounds were determined by comprehensive NMR studies, including DEPT, COSY, NOESY, HMQC, HMBC an d HRMS