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Abstract

Introduction: Sterculia foetida Linn. is widely distributed in tropical countries. As the continuous study on the hexane and ethyl acetate extracts of Sterculia foetida leaves, the isolation and structural determination of four triterpenoids and two coumarins were addressed.


Method: The crude extract was prepared from dried power of Sterculia foetida leaves by maceration method in ethanol. This extract was then separated by liquid-liquid partition with n-hexane, chloroform, and ethyl acetate, respectively, to obtain the corresponding extracts. The hexane and ethyl acetate extracts were applied to multiple silica gel column chromatography to yield six compounds. Their chemical structures were determined by the NMR data analysis as well as the comparison their spectroscopic data and physical properties with those of reported literature.


Results: Four triterpenoid compounds, including betulinic acid (1), conyzasaponin G (2), taraxerol (3), and taraxer-14-ene- 1a,3b -diol (4), and two coumarins fraxetin (5), and aesculin (6) were identified.


Conclusion: To the best of our knowledge, they have not been reported in the leaves of Sterculia foetida before, and compound 2 was known to present in Sterculia genus for the first time.



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Article Details

Issue: Vol 23 No 4 (2020): Under Publishing
Page No.: Online First
Published: Oct 25, 2020
Section: Natural Sciences - Report
DOI: https://doi.org/10.32508/stdj.v23i4.2449

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Copyright: The Authors. This is an open access article distributed under the terms of the Creative Commons Attribution License CC-BY 4.0., which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 How to Cite
Nguyen Kim Tuyen, P., Thi Quynh Trang, N., Cong Doan, H., Dinh Thuong, P., Trung Duan, N., Doan Duy Cuong, T., Bui Linh Chi, H., Thi Anh Tuyet, N., Kim Phi Phung, N., & Nguyen, T. (2020). Triterpenoids and coumarins from the leaves of Sterculia foetida Linn. Science and Technology Development Journal, 23(4), Online First. https://doi.org/https://doi.org/10.32508/stdj.v23i4.2449

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