A New ent-Pimarane-Type Diterpenoid Glycoside from Siegesbeckia pubescens
Fengqing Xu, Hu a ping Hu, Ying Li, Yashuo Ren, Hongsu Zhao, Qi Huang and Jutao Wang
School of Pharmacy, Anhui University of Chinese Medicine ; Anhui Innovative Team from Colleges for Scientific Research’s Platform -The Innovative Team in Researching the Key Technologies concerning the Integration of Processing Chinese Medicine Decoction Pieces in Producing Area , Hefei 2300 12 , P. R. China
Abstract: A new ent-pimarane-type diterpenoid glucoside , along with eight known same skeleton type were isolated from the ethanol extract of Siegesbeckia pubescens Makino by means of various chromatographic techniques (silica gel, RP-8, Sephadex LH-20, Pre-HPLC). Their structures were elucidated on the ba sis of spectroscopic analyses and the new one identified as ent-15-methylene-2α,16,19-trihydroxy-pimar-8(14)-ene-19-O-β-D-glucopyranoside .
Keywords: Siegesbeckia pubescens ; ent -pimarane-type diterpenoid; pubeside F. . © 2018 ACG Publications. All rights reserved.