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Two new conjugated ketonic fatty acids from the stem bark of Juglans mandshurica / 中国天然药物
Chinese Journal of Natural Medicines (English Ed.) ; (6): 299-302, 2015.
Article in English | WPRIM | ID: wpr-812143
ABSTRACT
The present study was designed to isolate and characterize novel chemical constituents of the stem bark of Juglans mandshurica Maxim. (Juglandaceae). The chemical constituents were isolated and purified by various chromatographic techniques. The structures of the compounds were elucidated on the basis of spectral data (1D and 2D NMR, HR-ESI-MS, CD, UV, and IR) and by the comparisons of spectroscopic data with the reported values in the literatures. Two long chain polyunsaturated fatty acids (1 and 2) were obtained and identified as (S)-(8E,10E)-12-hydroxy-7-oxo-8,10-octadecadienoic acid (1) and (S)-(8E, 10E)-12-hydroxy-7-oxo-8,10-octadecadienoic acid methyl ester (2). To the best of our knowledge, this is the first report on the isolation and structural elucidation of the two new conjugated ketonic fatty acids from this genus.
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Full text: Available Index: WPRIM (Western Pacific) Main subject: Spectrum Analysis / Chemistry / Plant Bark / Juglans / Fatty Acids, Unsaturated Language: English Journal: Chinese Journal of Natural Medicines (English Ed.) Year: 2015 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Main subject: Spectrum Analysis / Chemistry / Plant Bark / Juglans / Fatty Acids, Unsaturated Language: English Journal: Chinese Journal of Natural Medicines (English Ed.) Year: 2015 Type: Article