Applied microbiology and biotechnologyMay 13, 2022

Biological effects of oxadiazole and thiadiazole compounds

Alzheimers & Treatments Weekly Brief ↗PubMed ↗DOI ↗

Updated Mar 31, 2026

Abstract

The review focuses on the pharmacological properties of 1,2,4-oxadiazole and 1,3,4-thiadiazole isomers.

1,2,4-oxadiazole and 1,3,4-thiadiazole are significant components in various drugs, including those with antimicrobial and anticancer properties.
These isomers are chemically and heat resistant, making them valuable in drug design as bio-isosteric replacements.
Recent structural modifications of oxadiazole and thiadiazole derivatives have been reported with potential anti-tubercular and anticancer activities.
The review presents a thorough analysis of advancements in the biological significance of these heterocycles over the last 5 years.

Simplified

The 5-membered oxadiazole and thiadiazole scaffolds are the most privileged and well-known heterocycles, being a common and essential feature of a variety of natural products and medicinal agents. These scaffolds take up the center position and are the core structural components of numerous drugs that belong to different categories. These include antimicrobial, anti-tubercular, anti-inflammatory, analgesic, antiepileptic, antiviral, and anticancer agents. In this review, we mostly talk about the isomers 1,2,4-oxadiazole and 1,3,4-thiadiazole because they have important pharmacological properties. This is partly because they are chemical and heat resistant, unlike other isomers, and they can be used as bio-isosteric replacements in drug design. We are reviewing the structural modifications of different oxadiazole and thiadiazole derivatives, more specifically, the anti-tubercular and anticancer pharmacological activities reported over the last 5 years, as we have undertaken this as a core area of research. This review article desires to do a thorough study and analysis of the recent progress made in the important biological isomers 1,2,4-oxadiazole and 1,3,4-thiadiazol. This will be a great place to start for future research. KEY POINTS: • Five-membered heterocyclic compound chemistry and biological activity recent survey. • Synthesis and pharmacological evolution of 1,2,4-oxadiazole and 1,3,4-thiadiazole are discussed in detail. • The value and significance of heterocyclic compounds in the field of drug designing are highlighted.

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Biological effects of oxadiazole and thiadiazole compounds

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