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Synthesis and Evaluation of Technetium-99m (i) Tricarbonyl and Technetium-99m (v) oxo Chelates of Various amino, Carboxy and Thiol Based Ligand Systems: Utilization of this approach Towards the Development of Site Specific Radiopharmaceuticals.

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Title Synthesis and Evaluation of Technetium-99m (i) Tricarbonyl and Technetium-99m (v) oxo Chelates of Various amino, Carboxy and Thiol Based Ligand Systems: Utilization of this approach Towards the
Development of Site Specific Radiopharmaceuticals.
 
Creator Halder, Kamal Krishna
 
Subject Infectious Diseases and Immunology
 
Description Technetium-99m (99mTc) based radiopharmaceuticals have established
themselves as a very important class of compounds in the diagnosis of various organ malfunction in computerized g-camera imaging. These types of radiopharmaceuticals are produced in many cases by chelating 99mTc with organic compounds having multifunctional electron rich groups which through coordination establish chemical bond with the metal. The complexes thus formed accommodate technetium in different oxidation states.The most stable and readily accessible oxidation states are often characterized by chemically robust core structures which may be exploited as platforms for the development of radiopharmaceutical reagents. The most extensively developed core structure is {Tc(V)O}3+, particularly with tetradentate ligands of the NxS(4-x) type. Past research has focused primarily on attachment of the bifunctional chelators for complexation of the {Tc(V)O}3+ core into small tripeptides and tetra-peptides. This has been accomplished predominantly using N3S and N4
ligands. Other structural subunits which have attracted attention include the
{TcN}2+, {TcO2}+, and technetium 6-hydrazinonicotinic acid {Tc(HYNIC)x}3+
(where x = 1 or 2) cores. More recently, the Tc(I) core, technetium tricarbonyl
{Tc(CO)3}+ has been shown to provide an ideal geometry for the labeling of
chelators of the {Tc(CO)3}+ core with high specific activity.
 
Date 2011
 
Type Thesis
NonPeerReviewed
 
Identifier Halder, Kamal Krishna (2011) Synthesis and Evaluation of Technetium-99m (i) Tricarbonyl and Technetium-99m (v) oxo Chelates of Various amino, Carboxy and Thiol Based Ligand Systems: Utilization of this approach Towards the Development of Site Specific Radiopharmaceuticals. PhD thesis, Jadavpur University.
 
Relation http://www.eprints.iicb.res.in/1462/