A new 3,4-seco-lupane triterpenene glycosyl ester from the leaves of Eleutherococcus sessiliflorus.
Autor: Chen, Chen; Zhang, Danfeng; Zhao, Yan; Cai, Enbo; Zhu, Hongyan; Gao, Yugang
Publication year: 2020
Natural product research
issn:1478-6427 1478-6419
doi: 10.1080/14786419.2018.1564292
Abstract:
A new minor 3,4-seco-lupane triterpenene glycosyl ester, named sessiloside-A1 (1), along with three known 3,4-seco-lupane triterpenenes were isolated from the which alcohol extract of the leaves of Eleutherococcus sessiliflorus (Rupr. & Maxim.) S.Y. Hu by silica gel column chromatography, and their structures were determined by spectroscopic methods (UV, IR, NMR and HRMS). Compound 1 was elucidated to be β-D-glucopyranosyl ester of chiisanogenin. At the same time, a new efficient two-step enzymatic hydrolysis method was established to transform chiisanoside (2) → divaroside (3) → 1.
Language: eng
Rights:
Pmid: 30672331
Tags: Magnetic Resonance Spectroscopy; Molecular Structure; Plant Leaves/*chemistry; Plant Extracts/chemistry; 3,4-seco-lupane triterpenene; chiisanoside; Eleutherococcus sessiliflorus; Eleutherococcus/*chemistry; enzymatic hydrolysis; Esters/analysis/isolation & purification; Oligosaccharides/chemistry; Pentacyclic Triterpenes/chemistry/isolation & purification; sessiloside-A1; Triterpenes/chemistry/isolation & purification
Link: https://pubmed.ncbi.nlm.nih.gov/30672331/
