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Issue 18, 2020, Issue in Progress
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New triterpenoid saponin glycosides from the fruit fibers of Trichosanthes cucumerina L.

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Abstract

Five new triterpenoid saponin glycosides, trichocucumerisides A–E (1–5), together with eleven known compounds (6–16) were isolated from Trichosanthes cucumerina fruit fibers. The structures of the new compounds were elucidated by detailed analysis of NMR and mass spectroscopic data as well as chemical reactions. The anti-inflammatory study against nitric oxide (NO) production in lipopolysaccharide (LPS)-stimulated RAW264.7 cells shows that compounds 7 and 9 exhibited stronger NO inhibitory activity, with IC50 values of 3.0 and 2.7 μM, respectively, with comparison to positive references Celecoxib and aminoguanidine (IC50 values 75.7 and 75.0 μM, respectively). Compounds 7 and 9 also possessed a greater selectivity index (SI) of approximately 3–4-fold activity than that of the positive references.

Graphical abstract: New triterpenoid saponin glycosides from the fruit fibers of Trichosanthes cucumerina L.

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Supplementary files

Article information


Submitted
06 Feb 2020
Accepted
03 Mar 2020
First published
11 Mar 2020

This article is Open Access

RSC Adv., 2020,10, 10461-10470
Article type
Paper

New triterpenoid saponin glycosides from the fruit fibers of Trichosanthes cucumerina L.

P. Suebsakwong, W. Chulrik, W. Chunglok, J. Li, Z. Yao and A. Suksamrarn, RSC Adv., 2020, 10, 10461
DOI: 10.1039/D0RA01176B

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