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Chemistry and Industry of Forest Products ›› 2015, Vol. 35 ›› Issue (3): 121-124.doi: 10.3969/j.issn.0253-2417.2015.03.021

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Chemical Constituents of n-Butanol-insoluble Portion from Parochetus communis Buch.Extract

ZHANG Ni1, MU Shu-zhen2, WANG Jia-sheng1, KONG Qi1, YU Zheng-wen1   

  1. 1. School of Life Science, Guizhou Normal University, Guiyang 550001, China;
    2. Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, Guiyang 550002, China
  • Received:2014-03-07 Online:2015-06-25 Published:2015-07-03

Abstract: The chemical constituents of n-butanol-insoluble portion of Parochetus communis Buch extract were studied by acetylation.The aerial part of P.communis was extracted by 75% ethanol and the ethanol extract was suspended in distilled water and successively extracted by petroleum ether,ethyl acetate,and n-butanol.The insoluble portion of n-butanol extract was partly acetylated,then various column chromatographic methods were used for the isolation and purification.The chemical structures of compounds were elucidated on the basis of physicochemical properties and spectral date.Six compounds were isolated from n-butanol-insoluble portion of P.communis Buch and identified as β-sitosterol,1-triacontanol,medicarpin and pratol.All compounds were isolated from the medical plant for the first time.In addition,the solubility of n-butanol-insoluble portion was increased and the polarity of the chemical composition was decreased by acetylation.This method provides a new reference for the separation of high-polar compounds in other plant.

Key words: Parochetus communis Buch., acetylation, n-butanol-insoluble portion, chemical constituents

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