Paul, Saurav2019-07-172023-10-192019-07-172023-10-192017ROLL NO.126122015https://gyan.iitg.ac.in/handle/123456789/1319Supervisor: Debasis MannaThe contents of this thesis entitled “Design and Synthesis of Indoleamine 2,3-Dioxygenase 1 Inhibitors” have been divided into four chapters based on the results of experimental work carried out during the research period. The introductory chapter (Chapter 1) of the thesis describes the various physiological function of the heme-protein indoleamine 2,3-dioxygenase 1 (IDO1). This chapter also describes the importance of IDO1 as a key therapeutic target for the treatment of diseases (like cancer, Alzheimer etc.) which are associated with the L-tryptophan (L-Trp) metabolism through the kynurenine pathways. Chapter 2 demonstrates the synthesis of a series of nitrobenzofurazan derivatives of N'-hydroxybenzimidamides and their inhibitory activity studies against purified human IDO1 enzyme in both in vitro and under cellular environment. Chapter 3 describes the synthesis of a series of 3-substituted oxindoles and their inhibitory activity studies against purified human IDO1 enzyme in both in vitro and under cellular environment. Chapter 4 demonstrates the synthesis of a series of C3-substituted 1Hindazoles and their inhibitory activity studies against purified human IDO1 enzyme in both in vitro and under cellular environment.enCHEMISTRYThesis