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NMR assignments and single-crystal X-ray diffraction analysis of deoxyloganic acid

✍ Scribed by Rong Wei Teng; De Zu Wang; Yun Shan Wu; Yang Lu; Qi Tai Zheng; Chong Ren Yang

Publisher: John Wiley and Sons
Year: 2004
Tongue: English
Weight: 134 KB
Volume: 43
Category: Article
ISSN: 0749-1581
DOI: 10.1002/mrc.1502

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✦ Synopsis

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 ^1^H and ^13^C NMR spectra of 1 in solvents CD~3~OD, D~2~O and CDCl~3~ 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. Copyright © 2004 John Wiley & Sons, Ltd.

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