NMR assignments and single‐crystal X‐ray diffraction analysis of deoxyloganic acid | Zendy

Teng Rong Wei | Zendy; Wang De Zu | Zendy; Wu Yun Shan | Zendy; Lu Yang | Zendy; Zheng Qi Tai | Zendy; Yang Chong Ren | Zendy

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

Author(s) -

Teng Rong Wei,

Wang De Zu,

Wu Yun Shan,

Lu Yang,

Zheng Qi Tai,

Yang Chong Ren

Publication year - 2005

Publication title -

magnetic resonance in chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.483

H-Index - 72

eISSN - 1097-458X

pISSN - 0749-1581

DOI - 10.1002/mrc.1502

Subject(s) - chemistry , benzoic acid , caffeic acid , single crystal , proton nmr , carbon 13 nmr , x ray , crystallography , diffraction , stereochemistry , ethanol , nmr spectra database , spectral line , organic chemistry , physics , quantum mechanics , astronomy , optics , antioxidant

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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