Related Experiment Video
Updated: Jul 5, 2026

High-resolution Tandem Mass Spectrometry for Studying Chemical Constituents of Gynura bicolor DC
Published on: February 2, 2024
Two new compounds from Carthamus tinctorius
Yu-Zhi Zhou1, Huan Chen, Li Qiao
1School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, China.
Abstract:
From the dried petals of Carthamus tinctorius, a new flavonoid, (2R)-4',5-dihydroxyl-6,7-di-O-beta-d-glucopyranosyl flavanone (1) and a new aromatic glucoside, methyl-3-(4-O-beta-d-glucopyranosylphenyl) propionate (4) were isolated along with four known compounds (2S)-4',5-dihydroxyl-6,7-di-O-beta-d-glucopyranosyl flavanone (2), 6-hydroxykaempferol-3,6-di-O-beta-d-glucopyranoside (3), 4-O-beta-d-glucosyl-trans-p-coumaric acid (5), and 4-O-beta-d-glucosyl-cis-p-coumaric acid (6). Their structures were identified on the basis of chemical and spectroscopic methods.
Related Concept Videos
β-Dicarbonyl Compounds via Crossed Claisen Condensations
Esters to Carboxylic Acids: Saponification
The reaction requires a base in stoichiometric amounts, which participates in the reaction and is not regenerated later. So, the base acts as a...
[3,3] Sigmatropic Rearrangement of 1,5-Dienes: Cope Rearrangement
Loss of Carboxy Group as CO2: Decarboxylation of Malonic Acid Derivatives
Cyclohexenones via Michael Addition and Aldol Condensation: The Robinson Annulation
Aromatic Compounds: Overview
In 1825, Faraday isolated benzene...
