CHEMICAL AND BIOLOGICAL INVESTIGATIONS OF THE ROOTS OF SONCHUS OLERACEUS L. GROWING IN EGYPT

Document Type : Original Article

Author

Department of Pharmacognosy, Faculty of Pharmacy, Al-Azhar University, Assiut branch, Assiut 71524, Egypt

Abstract

Phytochemical study of the roots of Sonchus oleraceus L.
(Astraceae) growing in Egypt, afforded loliolide 1 for the first time
from the genus Sonchus in addition to 15-O-β-glucopyranosyl-
11β,13-dihydrourospermal A 2, ursolic acid 3, lupeol 4, and β-
sitosterol-3-O-β-glucopyranoside 5 for the first time from the
species. The biological evaluation of the isolated compounds
showed cytotoxic activity of 1 and 2 against L5187Y cell line, while
compound 2 showed activity against PC33 cell line. In addition to
antibacterial activity of compounds 1 and 2 against S. aureus, B.
subtilis, E. Coli, and N. gonorrhoea. The structures of the isolated
compounds were elucidated using 1D (1H and 13C), 2D (H-H
COSY, HMQC and HMBC) NMR and MS spectroscopic data.