2. Chemical and biological studies on some Heterocyclic nitrogen derivatives

3. Nahla abd elmoaty mohamed (M.Sc., Organic Chemistry) For Partial Fulfillment of The Requirements of The Doctorate in philosophy of science presented by 3

4. Introduction

5. Nitrogen containing heterocyclic compounds have received much attention as it posses exciting biological activities such as antimicrobial, anticonvulsant, cardiotonic, antifungal, anticancer, antitumor agent, and anti ‐ inflammatory activities so they are considered as important key elements.

6. The phthalazine derivative azelastine (A) is an antihistamine used in the treatment of allergic rhinitis. The phthalazine derivative azelastine (A) is an antihistamine used in the treatment of allergic rhinitis.

7. Zopolrestat (B) is aphthalazinone derivative that has been in clinical trials, it inhibit aldose reductase and has potential use in the prevention of retinopathy,neuropathy, and cataractformation in diabetes Zopolrestat (B) is aphthalazinone derivative that has been in clinical trials, it inhibit aldose reductase and has potential use in the prevention of retinopathy,neuropathy, and cataractformation in diabetes

8. The chemiluminescence reaction of luminol (C) has found analytical application, paticularly in biological system. The chemiluminescence reaction of luminol (C) has found analytical application, paticularly in biological system.

9. Aim of work

10. Synthesis of some heterocyclic nitrogen derivatives with potential biological activity.

11. Plan of work

12. 1-Synthesis of some heterocyclic nitrogen compounds. 2-Studying the behavior of the synthesized compounds towards organic reagents. 3-Elucidation the structures of the synthesized compounds via chemical methods and spectroscopic methods {IR, NMR, Mass, etc}. 4-Studying the biological activity of the synthesized compounds towards some microorganisms such as bacteria and fungi.