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Chemical constituents from the aerial parts of Plumbago zeylanica L.

Xiao-Yan Huang, Ming-Xiong Tan, Qiang Wu, Yong Chen, Heng-Shan Wang*   

  1. Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, College of Chemistry & Chemical Engineering, Guangxi Normal University, Guilin 541004, China
  • Received:2008-02-21 Revised:2008-05-10 Online:2008-06-15 Published:2008-06-15
  • Contact: Heng-Shan Wang*

Abstract:

To investigate the chemical constituents from the aerial parts of Plumbago zeylanica L. The chemical constituents were isolated by various column chromatographic methods and the structures were elucidated by various spectroscopic methods, especially 2D NMR spectra. A new triterpenoid, 1β,3β,11α-trihydroxy-urs-12-ene (1), together with six known compounds, androsta-1,4-diene-3,17- dione (2), isoshinznolone (3), neoechinulin A (4), harman (5), ergostadiene-3β,5α,6β-triol (6) and N-(N'-benzoyl-S-phenylalaninyl)-Sphenylalaninol (7) were isolated from the aerial parts of P. zeylanica. Compound 1 was a new compound, and compounds 2, 4-7 were obtained from this genus for the first time.

Key words: Plumbago, Plumbago, Plumbago zeylanica L., Plumbago zeylanica L., Chemical constituents, Chemical constituents, ,

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