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Related Experiment Videos

Indolinone derivatives as potential antimicrobial agents.

S P Singh1, K Jha

  • 1Rajendra Agricultural University, Bihar, Pusa (Samastipur), India.

Zentralblatt Fur Mikrobiologie
|January 1, 1989
PubMed
Summary

New thiosemicarbazone-indolinone derivatives show significant antibacterial, antifungal, and antiviral properties. These compounds demonstrate broad-spectrum antimicrobial and antiviral efficacy against various pathogens in vitro and in vivo.

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Area of Science:

  • Medicinal Chemistry
  • Antimicrobial Agents
  • Antiviral Agents

Background:

  • Thiosemicarbazone derivatives are known for their diverse biological activities.
  • Indolinone scaffold is a privileged structure in drug discovery.
  • Exploring novel chemical entities for combating microbial and viral infections is crucial.

Purpose of the Study:

  • To synthesize and evaluate the antimicrobial and antiviral potential of novel 1-substituted aminomethyl-3-cyclohexylthiosemicarbazone-2-indolinones.
  • To assess the antibacterial activity against Gram-positive bacteria.
  • To determine the antifungal activity against common fungal strains.
  • To investigate the in vitro and in vivo antiviral activity against tobacco mosaic virus.

Main Methods:

  • Synthesis of a series of 1-substituted aminomethyl-3-cyclohexylthiosemicarbazone-2-indolinone compounds.
  • In vitro antibacterial assays against Bacillus pumilis, Bacillus brevis, and Bacillus megaterium.
  • In vitro antifungal assays against Aspergillus flavus, Aspergillus fumigatus, and Aspergillus niger.
  • In vivo and in vitro antiviral screening against tobacco mosaic virus in Nicotiana glutinosa.

Main Results:

  • The majority of the synthesized compounds exhibited promising antibacterial activity.
  • A significant number of compounds demonstrated notable antifungal activity against the tested fungal species.
  • Most compounds displayed significant antiviral activity, both in vivo and in vitro, against tobacco mosaic virus.

Conclusions:

  • The novel thiosemicarbazone-indolinone derivatives possess broad-spectrum antimicrobial and antiviral properties.
  • These compounds represent potential lead candidates for the development of new therapeutic agents against bacterial, fungal, and viral infections.
  • Further structure-activity relationship studies and mechanistic investigations are warranted.

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