Complete assignments of   1  H and   13  C NMR data for seven arylnaphthalide lignans from  Justicia procumbens | Zendy

Yang Meihua | Zendy; Wu Jun | Zendy; Cheng Fan | Zendy; Zhou Yuan | Zendy

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Complete assignments of 1 H and 13 C NMR data for seven arylnaphthalide lignans from Justicia procumbens

Author(s) -

Yang Meihua,

Wu Jun,

Cheng Fan,

Zhou Yuan

Publication year - 2006

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.1830

Subject(s) - chemistry , chemical shift , heteronuclear single quantum coherence spectroscopy , stereochemistry , lignan , carbon 13 nmr , proton nmr , nuclear magnetic resonance spectroscopy

Three new arylnaphthalide lignans named 6′‐hydroxy justicidin A (1), 6′‐hydroxy justicidin B (2) and 6′‐hydroxy justicidin C (3) have been isolated from the whole plant of Justicia procumbens , together with four known ones, neojusticin A (4), chinensinaphthol methyl ester (5), isodiphyllin (6) and taiwanin C (7). The complete assignments of 1 H and 13 C NMR chemical shifts for the new lignans and the 13 C NMR chemical shifts for the known lignans were obtained for the first time by means of 2D NMR techniques, including HSQC and HMBC. Copyright © 2006 John Wiley & Sons, Ltd.

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