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Molecules 2018, 23(2), 355; https://doi.org/10.3390/molecules23020355

Bauerenol Acetate, the Pentacyclic Triterpenoid from Tabernaemontana longipes, is an Antitrypanosomal Agent

1
Department of Chemistry, Jackson State University, Jackson, MS 39217, USA
2
X-ray Crystallography Laboratory, Scripps Research Institute-FL, Jupiter, FL 33458, USA
3
Department of Chemistry, University of Alabama in Huntsville, Huntsville, AL 35899, USA
*
Author to whom correspondence should be addressed.
Received: 21 December 2017 / Revised: 2 February 2018 / Accepted: 6 February 2018 / Published: 8 February 2018
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Abstract

The Latin American plant Tabernaemontana longipes was studied in this work as a potential source of antiparasitic agents. The chloroform extract of T. longipes leaves was separated into several fractions, and tested for antitrypanosomal activity. One of the fractions displayed significant growth inhibitory activity against Trypanosoma brucei. The active principle in the fraction was isolated, purified, and characterized by NMR and mass spectrometry. The antitrypanosomal agent in the CHCl3 extract of T. longipes leaves is the pentacyclic triterpenoid bauerenol acetate. A metabolite profiling assay suggest that the triterpenoid influences cholesterol metabolism. The molecular target(s) of bauerenol and its acetate, like many other antiparasitic pentacyclic triterpenoids is/are unknown, but they present privileged structural scaffolds that can be explored for structure-based activity optimization studies using phenotypic assays. View Full-Text
Keywords: Tabernaemontana longipes; Trypanosoma brucei; trypanosomiasis; pentacyclic triterpenoid Tabernaemontana longipes; Trypanosoma brucei; trypanosomiasis; pentacyclic triterpenoid
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Carothers, S.; Nyamwihura, R.; Collins, J.; Zhang, H.; Park, H.; Setzer, W.N.; Ogungbe, I.V. Bauerenol Acetate, the Pentacyclic Triterpenoid from Tabernaemontana longipes, is an Antitrypanosomal Agent. Molecules 2018, 23, 355.

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