About author Ramesh Dhani Department of Pharmaceutical Chemistry JNTUA-OTRI, Anantapur, India E-mail: [email protected] ABSTRACT: Many important biochemical compounds and drugs of natural origin contain heterocyclic ring structures. Among these e.g. Carbohydrates, essential amino acids, vitamins, alkaloids, glycosides etc. the presence of heterocyclic structures in such diverse types of compounds is strongly indicative of the diverse types of the pharmacological activity. ... Read More »