Tetrazoles are a class of organic compounds characterized by a five-membered ring containing four nitrogen atoms and one carbon atom. They are known for their stability and versatility, making them useful in various chemical applications, including pharmaceuticals and agrochemicals. Tetrazoles can be synthesized through several methods, often involving the reaction of azides with carbonyl compounds. These compounds are of particular interest in medicinal chemistry, as some tetrazole derivatives exhibit biological activity. For example, losartan, a medication used to treat high blood pressure, contains a tetrazole moiety. The unique properties of tetrazoles contribute to their role in drug design and development.