Complete assignments of 1H and 13C NMR data for rings A,B-seco limonoids from the seed of Aphanamixis polystachya

Seven rings A,B‐seco limonoids 1–7 were isolated from the EtOH extract of the seed of Aphanamixis polystachya. Their structures were identified as rohituka‐7 (1), dregeana‐1 (2), rohituka‐15 (3), Tr‐B (4), rohituka‐3 (5), rohituka‐5 (6), and rohituka‐14 (7) by MS and NMR spectroscopy. The complete a...

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Published inMagnetic resonance in chemistry Vol. 45; no. 2; pp. 189 - 192
Main Authors Zhang, Huaping, Chen, Feng, Wang, Xi, Wu, Dagang, Chen, Qing
Format Journal Article
LanguageEnglish
Published Chichester, UK John Wiley & Sons, Ltd 01.02.2007
Subjects
13C NMR
1H NMR
2D NMR
Aphanamixis polystachya
Carbon Isotopes
dregeana-1
Hydrogen
Limonins - chemistry
Limonins - isolation & purification
limonoid
Magnetic Resonance Spectroscopy
Meliaceae
Meliaceae - chemistry
Molecular Structure
rohituka-3
Seeds - chemistry
Tr-B
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Summary:Seven rings A,B‐seco limonoids 1–7 were isolated from the EtOH extract of the seed of Aphanamixis polystachya. Their structures were identified as rohituka‐7 (1), dregeana‐1 (2), rohituka‐15 (3), Tr‐B (4), rohituka‐3 (5), rohituka‐5 (6), and rohituka‐14 (7) by MS and NMR spectroscopy. The complete assignment of proton and carbon signals was achieved by 1D and 2D NMR experiments including DEPT, HSQC, 1H1H COSY, HMBC, and NOESY. Copyright © 2006 John Wiley & Sons, Ltd.
Bibliography:ark:/67375/WNG-LF0M57C8-2
istex:C9023CCB9083EED61A33CAB304CC40702EB5AA08
ArticleID:MRC1937
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0749-1581
1097-458X
DOI:10.1002/mrc.1937