👉 The term "tetracyclic" is a term used in chemistry to describe a compound that consists of a tetrahedral coordination ring around one nitrogen atom. This type of molecule has been extensively studied for its potential applications in drug discovery and organic synthesis. Tetracyclic compounds are characterized by having a central nitrogen atom, which can be linked to other atoms or groups such as carbon, oxygen, or sulfur. The structure of a tetracyclic compound is typically composed of