Heterocyclic Chemistry

1.    Heterocyclic Compounds
2.    Nature as a Source of Heterocyclic Compounds
3.    Principles of Synthesis of Aromatic Heterocycles by Intramolecular Cyclization
4.    Synthesis of Heterocyclic Systems by Cycloaddition Reactions
5.    Aromaticity and other Special Properties of Heterocycles: Pi-Deficient Ring Systems
6.    Heterocycles and Nucleic Acid
7.    Synthetic Methods: diversity of Metabolism
8.    Reaction Mechanism