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Updated: Aug 21, 2026

Neutron Crystallography Data Collection and Processing for Modelling Hydrogen Atoms in Protein Structures
Published on: December 1, 2020
NMR assignments and single-crystal X-ray diffraction analysis of deoxyloganic acid
Rong Wei Teng1, De Zu Wang, Yun Shan Wu
1Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650204, P. R. China. tengrongwei@hotmail.com
Abstract:
7-Deoxyloganic acid (1), citrusin C (2), 3,4-dihydroxyl benzoic acid (3) and (E)-caffeic acid (4) were isolated from the water-soluble fraction of ethanol extracts of Morina nepalensis var. alba Hand.-Mazz. and their structures were determined on the basis of spectroscopic evidence. The total assignments of 1H and 13C NMR spectra of 1 in solvents CD3OD, D2O and CDCl3 were reported, in addition to the single-crystal X-ray diffraction analysis of its tetraacetate 1a. All compounds were obtained from Morina genus for the first time.
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