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|a (DE-627)NLM157595935
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|a (NLM)16142836
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a dos Santos, Claudio Costa
|e verfasserin
|4 aut
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|a NMR assignments and X-ray diffraction spectra for two unusual kaurene diterpenes from Erythroxylum barbatum
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|c 2005
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|a Text
|b txt
|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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|a Band
|b nc
|2 rdacarrier
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|a Date Completed 28.02.2006
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|a Date Revised 15.11.2006
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|a published: Print
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|a Citation Status MEDLINE
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|a Copyright (c) 2005 John Wiley & Sons, Ltd.
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|a The structural characterization of two new, unusual kaurene diterpenes isolated from roots of Erythroxylum barbatum is described. 1D NMR and several 2D shift-correlated NMR pulse sequences (1H,1H-COSY, HMQC, HMBC and NOESY) were used for structure elucidation and the unambiguous 1H and 13C chemical shifts assignments. Single crystal X-ray diffraction analysis was also used to confirm the final relative configuration of the compounds possessing the C-20 methyl and the CH2-15 methylene groups in cis-orientation
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Diterpenes, Kaurane
|2 NLM
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|a kaurene
|2 NLM
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|a 34424-57-2
|2 NLM
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|a Sousa Lima, Mary Anne
|e verfasserin
|4 aut
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|a Braz-Filho, Raimundo
|e verfasserin
|4 aut
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|a de Simone, Carlos Alberto
|e verfasserin
|4 aut
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|a Silveira, Edilberto Rocha
|e verfasserin
|4 aut
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|i Enthalten in
|t Magnetic resonance in chemistry : MRC
|d 1985
|g 43(2005), 12 vom: 19. Dez., Seite 1012-5
|w (DE-627)NLM098179667
|x 1097-458X
|7 nnns
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|g volume:43
|g year:2005
|g number:12
|g day:19
|g month:12
|g pages:1012-5
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|d 43
|j 2005
|e 12
|b 19
|c 12
|h 1012-5
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