Synthesis of novel tetrazole containing hybrid ciprofloxacin and pipemidic acid analogues and preliminary biological evaluation of their antibacterial and antiproliferative activity
| Autor: | Kommula Dileep, M. S. R. Murty, Sowjanya Polepalli, Nishant Jain, Sudheer Kumar Buddana, Reddy Shetty Prakasham |
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| Rok vydání: | 2017 |
| Předmět: |
medicine.drug_class
Stereochemistry Tetrazoles Antineoplastic Agents Microbial Sensitivity Tests 01 natural sciences Catalysis Inorganic Chemistry 03 medical and health sciences chemistry.chemical_compound Structure-Activity Relationship 0302 clinical medicine Ciprofloxacin Cell Line Tumor Drug Discovery medicine Humans Tetrazole Physical and Theoretical Chemistry Molecular Biology Cell Proliferation Bacteria Molecular Structure 010405 organic chemistry Chemistry Organic Chemistry Pipemidic acid General Medicine Quinolone In vitro 0104 chemical sciences Anti-Bacterial Agents Pipemidic Acid Streptomycin 030220 oncology & carcinogenesis Growth inhibition Antibacterial activity Information Systems medicine.drug |
| Zdroj: | Molecular diversity. 22(1) |
| ISSN: | 1573-501X |
| Popis: | A series of 1-substituted-1H-tetrazole-5-thiol building blocks were synthesized and introduced to the N-4 piperazinyl group at C-7 position of the quinolone core, and these novel compounds (5a–g and 8a–g) were screened for their antibacterial and antiproliferative activities. Bioactive assay studies manifested that most of new compounds exhibited significant antibacterial activity against the tested strains, including multi-drug-resistant MRSA in comparison with reference drugs ciprofloxacin, streptomycin B and pipemidic acid. Among the synthesized compounds, only ciprofloxacin (5a–g) derivatives displayed significant activity ( $$\mathrm{MIC}=15.6~\upmu \hbox {g}/\hbox {mL}$$ ) compared to reference drugs. In addition, these compounds were evaluated for their in vitro inhibition of human cancer cell lines viz human cervical carcinoma cell line (SiHA), breast adenocarcinoma (MDA-MB-235) and human pancreas carcinoma (PANC-1) cell lines by using the SRB assay method. Most of the target compounds showed broad potent growth inhibition activity ( $$\hbox {GI}_{50}\le ~0.1~\upmu \hbox {M}$$ ) against all the tested cancer cell lines compared with reference drug. The most promising active compounds in this series were 5c, 5d, 8c, 8d and 8f endowed with excellent antiproliferative activity. A new class of compounds was designed rationally by introducing tetrazole building block on N-4 piperazinyl group at C-7 position of quinolones core. The titled compounds were evaluated for their preliminary antibacterial and antiproliferative activities. |
| Databáze: | OpenAIRE |
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