Source:http://linkedlifedata.com/resource/pubmed/id/19552385
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
7
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pubmed:dateCreated |
2009-9-1
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pubmed:abstractText |
Sixteen new D-ring-opened phragmalin limonoid orthoesters, swietenitins A-M (1-6, 8, 10, 12-16), 2-acetoxyswietenialide D (7), 2,11-diacetoxyswietenialide D (9), and 11-deoxyswietenialide D (11), and four known compounds were isolated from the twigs of Swietenia macrophylla. The structures of 1-16 were established on the basis of spectroscopic methods, and 1 and 2 were confirmed by single-crystal X-ray diffraction. The (1)H NMR-based conformational analysis on the epimeric compounds 1 and 2 provided a general approach to determine the absolute configuration of the 2,3-epoxy-2-methylbutyryloxy unit at C-3 borne by a large group of the known phragmalin-type limonoid orthoesters.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Jul
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pubmed:issn |
1520-6025
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pubmed:author | |
pubmed:issnType |
Electronic
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pubmed:volume |
72
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1305-13
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pubmed:meshHeading |
pubmed-meshheading:19552385-Crystallography, X-Ray,
pubmed-meshheading:19552385-Limonins,
pubmed-meshheading:19552385-Meliaceae,
pubmed-meshheading:19552385-Molecular Conformation,
pubmed-meshheading:19552385-Molecular Structure,
pubmed-meshheading:19552385-Nuclear Magnetic Resonance, Biomolecular,
pubmed-meshheading:19552385-Plant Stems
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pubmed:year |
2009
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pubmed:articleTitle |
D-ring-opened phragmalin-type limonoid orthoesters from the twigs of Swietenia macrophylla.
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pubmed:affiliation |
Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, People's Republic of China.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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