13-Hydroxy-9Z,11E,15E-octadecatrienoic acid from the leaves of Cucurbita moschata

A new unsaturated hydroxy fatty acid was isolated from the leaves of Cucurbita moschata through repeated silica gel column chromatography and chemical methods. The structure of the new fatty acid was determined as 13-hydroxy-9,11,15-octadecatrienoic acid on the basis of several spectral data includi...

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Published inArchives of pharmacal research Vol. 25; no. 4; pp. 438 - 440
Main Authors Bang, Myun-Ho, Han, Jae-Taek, Kim, Hae Yeong, Park, Young-Doo, Park, Chang-Ho, Lee, Kang-Ro, Baek, Nam-In
Format Journal Article
LanguageEnglish
Published Korea (South) 01.08.2002
Subjects
Cucurbita - chemistry
Fatty Acids - chemistry
Fatty Acids - isolation & purification
Fatty Acids, Unsaturated - chemistry
Magnetic Resonance Spectroscopy
Mass Spectrometry
Molecular Conformation
Plant Leaves - chemistry
Spectrophotometry, Infrared
Spectrophotometry, Ultraviolet
Stereoisomerism
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Summary:A new unsaturated hydroxy fatty acid was isolated from the leaves of Cucurbita moschata through repeated silica gel column chromatography and chemical methods. The structure of the new fatty acid was determined as 13-hydroxy-9,11,15-octadecatrienoic acid on the basis of several spectral data including 2D-NMR. The stererostructures of double bonds were determined to be 9Z, 11E and 15E by coupling patterns of related proton signals in the 1H-NMR and NOESY experiments.
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ISSN:0253-6269
DOI:10.1007/BF02976597