• Shahla Ilyas
• Suresh Prasad Yadav
• Vandna Kumari

Heterocyclic compounds containing nitrogen and Oxygen as hetero atoms are an important class of compounds largely employed in pharmaceutical and therapeutic field. A cyclic organic compound containing all carbon atoms in the ring formation is called as carboxylic compound. At least one atom other than carbon like nitrogen, Sulphur, Oxygen in the carboxylic ring constitutes a heterocyclioc compound. These compounds generally consist of small (3 and 4 membered) and common (5 to 7 membered) ring system. This method of ring transformation is a deviation from the classical synthetic procedure.

Heterocyclic compounds, Pharmaceutical, ring formations, carboxylic ring.

"HETEROCYCLIC COMPOUNDS FOR BIOLOGICAL ACTIVITIES WITH AN EMPHASIS ON PYRIDINE AND ISOXAZOLE NUCLEUS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 4, page no.844-848, April-2019, Available :http://www.jetir.org/papers/JETIR1904R28.pdf

"HETEROCYCLIC COMPOUNDS FOR BIOLOGICAL ACTIVITIES WITH AN EMPHASIS ON PYRIDINE AND ISOXAZOLE NUCLEUS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 4, page no. pp844-848, April-2019, Available at : http://www.jetir.org/papers/JETIR1904R28.pdf