Synthesis of some new fluorine containing 1,3,4-oxadiazole derivatives as potential antibacterial and anticancer agents

K. Subrahmanya Bhat, M. S. Karthikeyan, B. Shivarama Holla, N. Suchetha Shetty

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

The synthesis of a number of 1,3,4-oxadiazole derivatives have been described. 2,4-Dichloro-5-fluorobenzoyl hydrazine 1 on reacting with aromatic acids in presence of phosphorus oxychloride affords 2,5-disubstituted-1,3,4- oxadiazoles 2a-j. Aroyl hydrazine on reacting with carbon disulphide under basic condition gives oxadiazol-2-thione 3. Oxadiazol-2-thiones are regioselectively aminomethylated to give N-aminomethylated products 4a-c. Further, 3 undergoes regioselective alkylation on treating with alkyl/aroyl halides to give S-alkyl/aroyl products 5a-c. All the newly synthesized compounds have been screened for their antibacterial activity. Most of them show promising antibacterial activity. Also two out of nine compounds show anticancer activity in the primary anticancer assay.

Original languageEnglish
Pages (from-to)1765-1769
Number of pages5
JournalIndian Journal of Chemistry - Section B Organic and Medicinal Chemistry
Volume43
Issue number8
Publication statusPublished - 08-2004

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hydrazine
Thiones
Fluorine
Antineoplastic Agents
Anti-Bacterial Agents
Carbon Disulfide
Derivatives
Alkylation
Carboxylic acids
Assays
Acids
1,3,4-oxadiazole

All Science Journal Classification (ASJC) codes

  • Pharmacology, Toxicology and Pharmaceutics(all)
  • Organic Chemistry

Cite this

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abstract = "The synthesis of a number of 1,3,4-oxadiazole derivatives have been described. 2,4-Dichloro-5-fluorobenzoyl hydrazine 1 on reacting with aromatic acids in presence of phosphorus oxychloride affords 2,5-disubstituted-1,3,4- oxadiazoles 2a-j. Aroyl hydrazine on reacting with carbon disulphide under basic condition gives oxadiazol-2-thione 3. Oxadiazol-2-thiones are regioselectively aminomethylated to give N-aminomethylated products 4a-c. Further, 3 undergoes regioselective alkylation on treating with alkyl/aroyl halides to give S-alkyl/aroyl products 5a-c. All the newly synthesized compounds have been screened for their antibacterial activity. Most of them show promising antibacterial activity. Also two out of nine compounds show anticancer activity in the primary anticancer assay.",
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Synthesis of some new fluorine containing 1,3,4-oxadiazole derivatives as potential antibacterial and anticancer agents. / Bhat, K. Subrahmanya; Karthikeyan, M. S.; Holla, B. Shivarama; Shetty, N. Suchetha.

In: Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, Vol. 43, No. 8, 08.2004, p. 1765-1769.

Research output: Contribution to journalArticle

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AU - Bhat, K. Subrahmanya

AU - Karthikeyan, M. S.

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AU - Shetty, N. Suchetha

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AB - The synthesis of a number of 1,3,4-oxadiazole derivatives have been described. 2,4-Dichloro-5-fluorobenzoyl hydrazine 1 on reacting with aromatic acids in presence of phosphorus oxychloride affords 2,5-disubstituted-1,3,4- oxadiazoles 2a-j. Aroyl hydrazine on reacting with carbon disulphide under basic condition gives oxadiazol-2-thione 3. Oxadiazol-2-thiones are regioselectively aminomethylated to give N-aminomethylated products 4a-c. Further, 3 undergoes regioselective alkylation on treating with alkyl/aroyl halides to give S-alkyl/aroyl products 5a-c. All the newly synthesized compounds have been screened for their antibacterial activity. Most of them show promising antibacterial activity. Also two out of nine compounds show anticancer activity in the primary anticancer assay.

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