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|a DE-627
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|e rakwb
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|a eng
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|a Oliveira, Mauro Lúcio G
|e verfasserin
|4 aut
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|a 3-Oxo-12alpha-hydroxyfriedelane from Maytenus gonoclada
|b structure elucidation by (1)H and (13)C chemical shift assignments and 2D-NMR spectroscopy
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|c 2007
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|a Text
|b txt
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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|b nc
|2 rdacarrier
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|a Date Completed 28.12.2007
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|a Date Revised 04.09.2007
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|a published: Print
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|a Citation Status MEDLINE
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|a (c) 2007 John Wiley & Sons, Ltd.
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|a The compounds 3-oxofriedelane (1), 3beta-hydroxyfriedelane (2), 3,11-dioxofriedelane (3), 3,16-dioxofrie delane (4) and 3-oxo-12alpha-hydroxyfriedelane (5) were isolated from the hexane extract of Maytenus gonoclada Mart. (Celastraceae) leaves. Structural formula and the stereochemistry of the new pentacyclic triterpene 3-oxo-12alpha-hydroxyfriedelane (5) were established through (1)H and (13)C NMR and DEPT 135 spectral data including 2D experiments (HMBC, HMQC, COSY, and NOESY) and mass spectrometry (GC-MS)
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|a Journal Article
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|a 3-oxo-12alpha-hydroxyfriedelane
|2 NLM
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|a Carbon Isotopes
|2 NLM
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|a Nitrogen Isotopes
|2 NLM
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|a Triterpenes
|2 NLM
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|a Duarte, Lucienir Pains
|e verfasserin
|4 aut
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|a Silva, Grácia Divina F
|e verfasserin
|4 aut
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|a Filho, Sidney Augusto Vieira
|e verfasserin
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|a Knupp, Vagner Fernandes
|e verfasserin
|4 aut
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|a Alves, Fernando Gomes P
|e verfasserin
|4 aut
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|i Enthalten in
|t Magnetic resonance in chemistry : MRC
|d 1985
|g 45(2007), 10 vom: 30. Okt., Seite 895-8
|w (DE-627)NLM098179667
|x 1097-458X
|7 nnns
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|g volume:45
|g year:2007
|g number:10
|g day:30
|g month:10
|g pages:895-8
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|d 45
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