Anti-cancer and Anti-angiogenic Properties of Various Natural Pentacyclic Tri-terpenoids and Some of their Chemical Derivatives

Pentacyclic triterpenes are natural substances, synthesized and present in variable amounts in a large number of terrestrial and aquatic plants, which act not only as antioxidants and antimicrobials but also as poisons, antibiotics, protease inhibitors, and so on. From the organic chemistry point of view, they are compounds derived from isoprene. These compounds consist of 30 carbons with different substituents, which facilitate their chemical...