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Synthesis of novel benzofuran isoxazolines as protein tyrosine phosphatase 1B inhibitors. 2006

Ghufran Ahmad, and Pushpesh K Mishra, and Prasoon Gupta, and Prem P Yadav, and Priti Tiwari, and Akhilesh K Tamrakar, and Arvind K Srivastava, and Rakesh Maurya
Medicinal and Process Chemistry Division, Central Drug Research Institute, Lucknow 226 001, India.

PTPases are considered to be involved in the etiology of diabetes mellitus and neural diseases, such as Alzheimer's disease and Parkinson's disease. Therefore, PTPase inhibitors should be useful tools to study the role of PTPases in these diseases and other biological phenomena, and which can be developed into chemotherapeutic agents. In the present study, we have synthesized novel benzofuran isoxazolines 13-21 via 1,3-dipolar cycloaddition reaction using karanjin (1) and kanjone (2), isolated from Pongamia pinnata fruits. All the synthesized compounds were evaluated against PTPase enzyme. Compounds 19 and 20 displayed significant inhibitory activity with IC50 values 76 and 81 microM, respectively.

UI MeSH Term Description Entries
D007004 Hypoglycemic Agents Substances which lower blood glucose levels. Antidiabetic,Antidiabetic Agent,Antidiabetic Drug,Antidiabetics,Antihyperglycemic,Antihyperglycemic Agent,Hypoglycemic,Hypoglycemic Agent,Hypoglycemic Drug,Antidiabetic Agents,Antidiabetic Drugs,Antihyperglycemic Agents,Antihyperglycemics,Hypoglycemic Drugs,Hypoglycemic Effect,Hypoglycemic Effects,Hypoglycemics,Agent, Antidiabetic,Agent, Antihyperglycemic,Agent, Hypoglycemic,Agents, Antidiabetic,Agents, Antihyperglycemic,Agents, Hypoglycemic,Drug, Antidiabetic,Drug, Hypoglycemic,Drugs, Antidiabetic,Drugs, Hypoglycemic,Effect, Hypoglycemic,Effects, Hypoglycemic
D007555 Isoxazoles Azoles with an OXYGEN and a NITROGEN next to each other at the 1,2 positions, in contrast to OXAZOLES that have nitrogens at the 1,3 positions. Isoxazole
D008956 Models, Chemical Theoretical representations that simulate the behavior or activity of chemical processes or phenomena; includes the use of mathematical equations, computers, and other electronic equipment. Chemical Models,Chemical Model,Model, Chemical
D010081 Oxazolone Immunologic adjuvant and sensitizing agent. 2-Phenyl-4-(ethoxymethylene)oxazol-5-one,4-Ethoxymethylene-2-phenyloxazolone,4 Ethoxymethylene 2 phenyloxazolone
D011485 Protein Binding The process in which substances, either endogenous or exogenous, bind to proteins, peptides, enzymes, protein precursors, or allied compounds. Specific protein-binding measures are often used as assays in diagnostic assessments. Plasma Protein Binding Capacity,Binding, Protein
D004791 Enzyme Inhibitors Compounds or agents that combine with an enzyme in such a manner as to prevent the normal substrate-enzyme combination and the catalytic reaction. Enzyme Inhibitor,Inhibitor, Enzyme,Inhibitors, Enzyme
D001572 Benzofurans Compounds that contain a BENZENE ring fused to a furan ring. Coumarones,Diphenylbenzofuran
D001578 Benzopyrans Compounds with a core of fused benzo-pyran rings. Benzopyran,Chromene,Chromenes
D015195 Drug Design The molecular designing of drugs for specific purposes (such as DNA-binding, enzyme inhibition, anti-cancer efficacy, etc.) based on knowledge of molecular properties such as activity of functional groups, molecular geometry, and electronic structure, and also on information cataloged on analogous molecules. Drug design is generally computer-assisted molecular modeling and does not include PHARMACOKINETICS, dosage analysis, or drug administration analysis. Computer-Aided Drug Design,Computerized Drug Design,Drug Modeling,Pharmaceutical Design,Computer Aided Drug Design,Computer-Aided Drug Designs,Computerized Drug Designs,Design, Pharmaceutical,Drug Design, Computer-Aided,Drug Design, Computerized,Drug Designs,Drug Modelings,Pharmaceutical Designs
D017027 Protein Tyrosine Phosphatases An enzyme group that specifically dephosphorylates phosphotyrosyl residues in selected proteins. Together with PROTEIN-TYROSINE KINASE, it regulates tyrosine phosphorylation and dephosphorylation in cellular signal transduction and may play a role in cell growth control and carcinogenesis. Phosphotyrosine Phosphatase,Protein-Tyrosine-Phosphatase,Tyrosyl Phosphoprotein Phosphatase,PTPase,Phosphotyrosyl Protein Phosphatase,Protein-Tyrosine Phosphatase,Phosphatase, Phosphotyrosine,Phosphatase, Phosphotyrosyl Protein,Phosphatase, Protein-Tyrosine,Phosphatase, Tyrosyl Phosphoprotein,Phosphatases, Protein Tyrosine,Phosphoprotein Phosphatase, Tyrosyl,Protein Phosphatase, Phosphotyrosyl,Protein Tyrosine Phosphatase,Tyrosine Phosphatases, Protein

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