• Title/Summary/Keyword: Indazoles

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Synthesis and Biological Activity of Indazole-Derived HMG-CoA Reductase Inhibitors

  • Kim, Jin-Il;Jahng, Yurng-Dong
    • Archives of Pharmacal Research
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    • v.18 no.3
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    • pp.206-212
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    • 1995
  • New hypolipaemic agents, in which substituted indazole nucleus is connected to tetrahydro-4-hydroxy-2H-pyran-2-one by a two-carbon bridge, were designed and synthesized to show significant inhibitory activity against microsomal HMG-CoA reductase in rat liver.

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Synthesis, Spectral and Antimicrobial Studies of Some N(2)-Substituted Tetrahydroindazoles

  • Amirthaganesan, Shanmugasundaram;Aridoss, Gopalakrishnan;Park, Keun-Soo;Lim, Kwon-Taek;Jeong, Yeon-Tae
    • Bulletin of the Korean Chemical Society
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    • v.31 no.5
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    • pp.1135-1142
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    • 2010
  • A series of N(2)-benzothiazolyl substituted tetrahydroindazoles has been synthesized via cyclic ${\beta}$ keto esters. Optimum reaction condition was found as acidic toluene and effect of higher acidity towards substituted hydrazines in situ was described. Synthesized compounds have been achieved as single isomer and characterized by using 1D and 2D NMR spectral reports. Antimicrobial screening was carried out for the synthesized compounds along with a series of N(2)-pyridyl tetrahydroindazoles.1 The results of the in vitro antimicrobial screening studies revealed that compounds 13, 16 against Staphylococcus aureus, 11 against Escherichia coli, 10-12, 16 against Pseudomonas aeruginosa and 12 against Klebsiella pneumoniae recorded almost two-fold better activity compared to the standard drug used.