a Department of Pharmacy, Fujian Medical University, Fuzhou 350004, China;b National Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
Abstract:
Two new triterpenoid saponins were isolated from the roots ofRhaponticum uniflorum. Their structures were elucidated as 3-O-[β-D-glucopyranosyl]-ilexolic acid-28-O-[β-D-glucopyranosyl] ester 1 and 3-O-[β-D-glucopyranosyl]-urs-12, 19 (29)-dien-oicacid-28-O-[β-D-glucopyranosyl] ester 2 mainly by 1D, 2D NMR techniques and chemical methods.