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Growing Science » Authors » Hiren H. Variya

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1.

Synthesis and characterization of 4(3-(4-Fluorophenyl)2-methyl-1-(4-(sulfonamidesubtituted)phenyl)-4-oxoazitidin-2-yl)-3-methyl-1-(p-tolyl)-1H-pyrazol-5(4H)One as Antibacterial, and Antioxidant Candidates Pages 315-324 Right click to download the paper Download PDF

Authors: Krupa P. Patel, Hiren H. Variya, Ganpat R. Patel

DOI: 10.5267/j.ccl.2023.12.001

Keywords: Sulfonamide, 2-Azetidinone, Antifungal, Anti-bacterial, Anti-Oxidant

Abstract:
A series of all novels 4(3-(4-Fluorophenyl)2-methyl-1-(4-(sulfonamidesubtituted)phenyl)-4-oxoazitidin-2-yl)-3-methyl-1-(p-tolyl)-1H-pyrazol-5(4H) One 5a-5r poly functionalized derivatives were containing sulfonamide functionality united with 2-Azitidinone (Azitidin-2-one or β-lactam) group which designed and synthesized with moderate to good yield. The starting with 4-acyl-2-pyrazolin-5-one (APYZ) 1 which condensed with different sulfonamides 2 produced intermediate Schiff bases 4-(arylideneamino)-N-(thiazol-2-yl)benzensulfonamide 3a-r were cyclization with 2-(4-flourophenyl)chloroacetylchloride (F-CAC) 4 which produced targeted compounds 5a-5r of 2-Azitidinone versatile group in good yield. The isolated compounds were recognized by spectral and elemental investigation. The compounds 5f, 5l, 5n, and 5r showed excellent increased antibacterial activity compared to streptomycin standard drug and 5c, 5f, 5l, 5o, and 5r showed moderate to good antioxidant properties with used DPPH radical scavenging assay.
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Journal: CCL | Year: 2024 | Volume: 13 | Issue: 2 | Views: 665 | Reviews: 0

 
2.

Synthesis and characterization of 4-((5-bromo-1H-pyrazolo [3,4-b]pyridin-3-yl)amino)-N-(substituted)benzenesulfonamide as Antibacterial, and Antioxidant Candidates Pages 177-186 Right click to download the paper Download PDF

Authors: Hiren H. Variya, Vikram Panchal, Ganpat R. Patel

DOI: 10.5267/j.ccl.2019.5.001

Keywords: Sulfonamide, 1H-pyarazolo[3, 4-b]pyridin Antioxidant Anti-bacterial activity Spectral studies

Abstract:
A series of novel 5-Bromo-3-iodo-1H-pyrazolo[3,4-b]pyridine linked various sulfonamide derivatives 8a-8j poly functionalized were designed and synthesized in moderate to good yield. A starting with iodination of 5-Bromo-1H-pyrazolo[3,4-b]pyridine 5 with iodine produced intermediate 5-Bromo-3-iodo-1H-pyrazolo[3,4-b]pyridine 6 with the reaction of various sulfonamide derivatives 7a-7j via copper catalyzed coupling reaction produced targeted compounds8a-8j. The isolated compounds were accepted by spectral and elemental analysis. The compounds 8a,8c,8d, and 8i were excellent active against Gram-positive and gram-negative bacterial strain compare to streptomycin standard drug. All synthesized compounds showed moderate to good antioxidant properties with used DPPH and Superoxide radical scavenging assay, Compounds 8c, 8g, and 8i exerted significant antioxidant scavenging activity for the DPPH radical.
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Journal: CCL | Year: 2019 | Volume: 8 | Issue: 4 | Views: 1711 | Reviews: 0

 

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