imidazole
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Definition
- Noun:
- A heterocyclic organic compound: "imidazole" is a white or colorless crystalline solid with the chemical formula C₃H₄N₂. It is a five-membered ring containing two non-adjacent nitrogen atoms.
- A class of compounds and a functional group: The term also refers to the class of compounds containing this ring structure, which is a fundamental building block in many important biological molecules.
- A histamine inhibitor: Some derivatives of imidazole are used in pharmaceuticals to inhibit the action of histamine.
Usage Examples
- Noun:
- The structure of imidazole is important in biochemistry.
- Histidine, an essential amino acid, contains an imidazole ring in its side chain.
- The drug uses an imidazole derivative to achieve its therapeutic effect.
Advanced Usage
- In medicinal chemistry: The imidazole ring is a common pharmacophore, a part of a molecular structure responsible for a drug's activity.
- Many antifungal agents, such as ketoconazole, are based on the imidazole scaffold.
- In coordination chemistry: Imidazole can act as a ligand, binding to metal ions.
- The imidazole group in a histidine residue often coordinates with zinc in enzyme active sites.
Variants and Related Words
- Imidazolate (n): The conjugate base of imidazole, often involved in chemical reactions.
- Imidazolium (n): A cation derived from imidazole, commonly found in ionic liquids.
- Benzimidazole (n): A bicyclic compound consisting of a benzene ring fused to an imidazole ring.
Synonyms
- 1,3-diazole: A systematic chemical name for imidazole, indicating the positions of the nitrogen atoms in the ring.
- Glyoxaline: An older, now less common name for imidazole.
Related Phrases and Concepts
- Imidazole alkaloids: A class of naturally occurring compounds containing the imidazole nucleus.
- Imidazole-containing drugs: A broad category of pharmaceuticals, including antifungals, antihistamines, and proton-pump inhibitors.
Noun
- an organic base C3H4N2; a histamine inhibitor