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  • Title: Development of 3-phenyl-4,5,6,7-tetrahydro-1H-pyrazolo[4,3-c]pyridine derivatives as novel Mycobacterium tuberculosis pantothenate synthetase inhibitors.
    Author: Samala G, Devi PB, Nallangi R, Yogeeswari P, Sriram D.
    Journal: Eur J Med Chem; 2013 Nov; 69():356-64. PubMed ID: 24077526.
    Abstract:
    Forty 3-phenyl-4,5,6,7-tetrahydro-1H-pyrazolo[4,3-c]pyridine derivatives were synthesized from piperidin-4-one by five step synthesis and evaluated for Mycobacterium tuberculosis (MTB) pantothenate synthetase (PS) inhibition study, in vitro activities against MTB, cytotoxicity against RAW 264.7 cell line. Among the compounds, 1-benzoyl-N-(4-nitrophenyl)-3-phenyl-6,7-dihydro-1H-pyrazolo[4,3-c]pyridine-5(4H)-carboxamide (6ac) was found to be the most active compound with IC₅₀ of 21.8 ± 0.8 μM against MTB PS, inhibited MTB with MIC of 26.7 μM and it was non-cytotoxic at 50 μM.
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