Related Experiment Video
Updated: Jun 1, 2026

Analysis of Raw and Processed Cyperi Rhizoma Samples Using Liquid Chromatography-Tandem Mass Spectrometry in Rats with Primary Dysmenorrhea
Published on: December 23, 2022
Cynaratriol, a sesquiterpene lactone from Centaurea musimomum
Abstract:
THE TITLE COMPOUND [SYSTEMATIC NAME: 3,8-dihydr-oxy-3-(hydroxy-meth-yl)-9-methyl-6-methyl-enedeca-hydro-azuleno[4,5-b]furan-2(3H)-one], C(15)H(22)O(5), is a sesquiterpene lactone showing the typical tricyclic guaianolide skeleton which has been isolated, together with other related metabolites, from the plant Centaurea musimomum. The present study confirms the mol-ecular structure, assigned by (1)H NMR and MS spectroscopy, as well as the the 11β-hydroxy-methyl, 3β-hydr-oxy and 4α-methyl stereochemistry. The crystal structure is built through a network of O-H⋯O hydrogen bonds involving the three hydroxyl groups that are present in the mol-ecular skeleton.
Related Concept Videos
Aromatic Hydrocarbon Cations: Structural Overview
Removing one hydrogen from the intervening CH2 group with both...
Stereoisomerism of Cyclic Compounds
[3,3] Sigmatropic Rearrangement of 1,5-Dienes: Cope Rearrangement
Cycloalkanes
The IUPAC nomenclature of cycloalkanes follows similar rules that apply to...
Direct-Acting Cholinergic Agonists: Therapeutic Uses
Crown Ethers

