Related Experiment Video
Updated: Jan 21, 2026

Formulation and Characterization of Bioactive Agent Containing Nanodisks
Published on: March 17, 2023
Ursolic Acid and Its Derivatives as Bioactive Agents
Sithenkosi Mlala1, Adebola Omowunmi Oyedeji2, Mavuto Gondwe3
1Department of Chemistry, Faculty of Science and Agriculture, University of Fort Hare, Private Bag X1314, Alice 5700, South Africa.
Ursolic acid (UA) and its derivatives from medicinal plants show promise for treating non-communicable diseases (NCDs). Research focuses on enhancing UA
Area of Science:
- Natural Product Chemistry
- Pharmacology
- Medicinal Plant Research
Background:
- Non-communicable diseases (NCDs) pose significant global health threats.
- Existing drug resistance and side effects necessitate novel therapeutic strategies.
- Medicinal plants offer a rich source of potential NCD treatments, particularly pentacyclic triterpenoids (PTs).
Purpose of the Study:
- To review the latest research on ursolic acid (UA) and its derivatives for NCD management.
- To explore the sources, chemistry, biological activities, and clinical applications of UA-based compounds.
- To highlight the potential of UA derivatives in overcoming limitations of native UA.
Main Methods:
- Comprehensive literature review of studies published in the last decade.
- Analysis of chemical modifications of ursolic acid (UA) at key positions (C-3, C12-C13, C-28).
- Evaluation of reported biological effects and clinical trial data for UA and its derivatives.
Main Results:
- Ursolic acid (UA) exhibits diverse biological effects including anti-inflammatory, anticancer, antidiabetic, and antioxidant properties.
- Medicinal plants like *Mimusops caffra*, *Ilex paraguarieni*, and *Glechoma hederacea* are identified as key sources of UA.
- Chemical modifications have yielded UA derivatives with improved potency, bioavailability, and solubility, enhancing their therapeutic potential.
Conclusions:
- Ursolic acid (UA) and its synthesized derivatives represent promising therapeutic agents for non-communicable diseases (NCDs).
- Further research and clinical trials are warranted to fully establish the efficacy and safety of UA derivatives in NCD treatment.
- Overcoming UA's bioavailability challenges through chemical modification is crucial for its clinical translation.
Related Concept Videos
Acidity and Basicity of Carboxylic Acid Derivatives
The relative acidic strength of the derivatives can be explained based on the extent of resonance stabilization of the conjugate base. The...
Structures of Carboxylic Acid Derivatives
Carboxylic acid derivatives contain an acyl group attached to a heteroatom such as chlorine, oxygen, or nitrogen. The carbonyl carbon and oxygen are both sp2-hybridized with an unhybridized p orbital.
The three sp2 orbitals of the carbonyl carbon form three σ bonds, one each with the carbonyl oxygen, the α carbon, and the heteroatom, whereas the other two sp2 orbitals of the carbonyl oxygen are occupied by the lone pairs. Further, the unhybridized p...
Spectroscopy of Carboxylic Acid Derivatives
Nomenclature of Carboxylic Acid Derivatives: Acid Halides, Esters, and Acid Anhydrides
The IUPAC and common names of acid halides are derived from the corresponding carboxylic acids, by changing “ic acid” to “yl halide.” For example, as shown below, the IUPAC name ethanoyl chloride is derived from ethanoic acid, and the common name, acetyl chloride, is obtained from acetic acid.
Carboxylic Acid Derivatives: Overview
Relative Reactivity of Carboxylic Acid Derivatives
A key factor in assessing the reactivity of the acid derivatives is the basicity of the substituent or the leaving group. The lower the basicity of the leaving group, the higher the reactivity of the derivative. The basicity of the leaving group follows this order:
Halide ions < Acyloxy ions < Alkoxy ions < Amine ions

