Ketoconazole

Ketoconazole is a synthetic antifungal agent characterized by a 4-(4-chlorophenyl)-2-(2,4-dichlorophenyl)-1,3-thiazole core linked to an imidazole ring via a methylene bridge, featuring a 2-(2-hydroxyethoxy) substituent and a 4-methyl-2-oxazolidinone moiety. The molecule incorporates two chlorophenyl groups, a thiazole heterocycle, and an imidazole nitrogen donor, conferring lipophilic and hydrogen-bonding interactions critical for CYP51 inhibition. As the parent drug, it exists in a single enantiomeric form with defined stereochemistry at the thiazole junction. Serves as the active pharmaceutical ingredient in antifungal therapeutic formulations.