A new (E)-4-hydroxy-dodec-2-enedioic acid from the stem bark ofalbizzia julibrissin |
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Authors: | Jung Mee Jung Kang Sam Sik Choi Jae Sue |
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Institution: | Faculty of Food Science and Biotechnology, Pukyong National University, Busan 608-737, Korea. |
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Abstract: | A new unsaturated hydroxy acid was isolated from the stem bark extract of Albizzia julibrissin through repeated silica gel and Sephadex LH-20 column chromatography. The chemical structure of the new acid was determined as (E)-4-hydroxy-dodec-2-enedioic acid on the basis of several spectral data including 2D-NMR. The stereochemical feature of the double bond was determined to be E on the basis of the coupling pattern of related proton signals in the 1H-NMR and COSY experiments. |
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Keywords: | Albizzia julibrissin Leguminosae Unsaturated hydroxy acid (E)-4-Hydroxy-dodec-2-enedioic acid |
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