Diltiazem Analogues: The Last Ten Years on Structure Activity Relationships
Abstract:Cardiovascular diseases as hypertension, angina and/or supraventricular arrhythmias are among the most important death causes in the world. For the treatment of heart pathologies, calcium channel entry blockers are very important drugs, owing to their therapeutic versatility. Although few calcium antagonists described until today are structurally related to diltiazem and to the benzothiazepine class, the still high pharmaceutical interest on diltiazem analogues justifies this review.
Diltiazem and its first analogues developed in the early '70s became popular in the '80s, and were pharmacologically characterized for a long time. It is in the '90s that several research groups carried out structural variations identifying novel scaffolds for diltiazem-related compounds, with significant calcium antagonist behaviour.
Recently, a series of thiazino-oxadiazolone derivatives were identified as potent and selective antagonists for calcium influx into cardiac cells, and they were subsequently used to search for novel chemotypes by means of virtual screening techniques. The resulting hits could open interesting perspectives for the development of drugs to treat cardiovascular diseases.
In the present review, an updated collection of diltiazem analogues is reported over the last ten years. The chemical structure and the structure activity relationships will be given, with additional mention to the potential therapeutic applications.
Document Type: Research Article
Affiliations: Dipartimento di Scienze Farmaceutiche, Universita degli Studi di Bologna, Via Belmeloro 6, 40126 Bologna, Italia.
Publication date: February 1, 2007
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