A new (E)4-hydroxy-dodec-2-enedioic acid from the stem bark of Albizzia julibrissin.
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.
Faculty of Food Science and Biotechnology, Pukyong National University, Busan 608-737, Korea.
Mee Jung
MJ
Jung
Sam Sik
SS
Kang
Jae Sue
JS
Choi
D031289:Albizzia; D006880:Hydroxy Acids / Q000737:chemistry* / Q000302:isolation & purification*; D024301:Plant Bark; D010936:Plant Extracts / Q000737:chemistry / Q000302:isolation & purification; D018547:Plant Stems
D006880:Hydroxy Acids; D010936:Plant Extracts