scholarly journals Synthesis and Biological Activity of (Z) –n-(5-Benzylidene-4-oxo-2-substituted- phenylthiazolidin-3-yl)-5-((1, 3-dioxoisoindolin-2-yl)methyl)-2-hydroxybenzamide

2010 ◽  
Vol 7 (4) ◽  
pp. 1484-1490
Author(s):  
M. C. Patel ◽  
Dhameliya
Keyword(s):  
Biological Activity ◽  
Spectral Data ◽  
Thioglycolic Acid ◽  
Aromatic Aldehydes ◽  
Antifungal Activities ◽  
Antibacterial And Antifungal Activities ◽  
Antibacterial And Antifungal

5-((1, 3-Dioxoisoindolin-2-yl)methyl-2-hydroxybenzohydrazide (1) undergoes facile condensation with aromatic aldehydes to afford the correspondingN'-substituted-phenyl-5-((1,3-dioxoisoindolin-2-yl) methyl)-2-hydroxybenzohydrazide (2a-h) in good yields. Cyclocondensation of compounds (2a-h) with thioglycolic acid yields 5-((1,3-dioxoisoindolin-2-yl) methyl)-2-hydroxy-N-(4-oxo-2-substituted phenylthiazolidin-3-yl)benzamide (3a-h). These (3a-h) compounds were further reacted with benzaldehyde in the presence of sodium ethanolate affords, (Z) –N-(5-benzylidene-4-oxo-2-substituted phenyl-thiazolidin-3-yl)-5-((1,3-dioxoisoindolin-2-yl)methyl)-2-hydroxybenzamdie(4a-h). The structures of these compounds were established on the basis of analytical and spectral data. All the newly synthesized compounds were evaluated for their antibacterial and antifungal activities.

scholarly journals Development of Antibacterial and Antifungal Triazole Chromium(III) and Cobalt(II) Complexes: Synthesis and Biological Activity Evaluations

Molecules ◽  
2018 ◽  
Vol 23 (8) ◽  
pp. 2013 ◽  
Author(s):  
Ricardo Murcia ◽  
Sandra Leal ◽  
Martha Roa ◽  
Edgar Nagles ◽  
Alvaro Muñoz-Castro ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Biological Activity ◽  
Melting Point ◽  
Inhibitory Concentration ◽  
Vero Cells ◽  
Visible Spectroscopy ◽  
Antifungal Activities ◽  
Antibacterial And Antifungal Activities ◽  
Antibacterial And Antifungal ◽  
New Compounds

In this work, six complexes (2–7) of Cr(III) and Co(II) transition metals with triazole ligands were synthesized and characterized. In addition, a new ligand, 3,5-bis(1,2,4-triazol-1-ylmethyl)toluene (1), was synthesized and full characterized. The complexes were obtained as air-stable solids and characterized by melting point, electrical conductivity, thermogravimetric analysis, and Raman, infrared and ultraviolet/visible spectroscopy. The analyses and spectral data showed that complexes 3–7 had 1:1 (M:L) stoichiometries and octahedral geometries, while 2 had a 1:2 (M:L) ratio, which was supported by DFT calculations. The complexes and their respective ligands were evaluated against bacterial and fungal strains with clinical relevance. All the complexes showed higher antibacterial and antifungal activities than the free ligands. The complexes were more active against fungi than against bacteria. The activities of the chromium complexes against Candida tropicalis are of great interest, as they showed minimum inhibitory concentration 50 (MIC50) values between 7.8 and 15.6 μg mL−1. Complexes 5 and 6 showed little effect on Vero cells, indicating that they are not cytotoxic. These results can provide an important platform for the design of new compounds with antibacterial and antifungal activities.

scholarly journals Synthesis of selected 5-thio-substituted tetrazole derivatives and evaluation of their antibacterial and antifungal activities

2011 ◽  
Vol 76 (2) ◽  
pp. 165-175 ◽  
Author(s):  
V. Dhayanithi ◽  
Syed Shafi ◽  
K. Kumaran ◽  
Sankar Jai ◽  
Venkat Ragavan ◽  
...  
Keyword(s):  
Spectral Data ◽  
Elemental Analysis ◽  
Sodium Azide ◽  
Second Step ◽  
Benzyl Isothiocyanate ◽  
Step Process ◽  
Antifungal Activities ◽  
Antibacterial And Antifungal Activities ◽  
Antibacterial And Antifungal ◽  
Tetrazole Derivatives

Several 5-thio-substituted tetrazole derivatives were efficiently synthesized by a three-step process. The substituted tetrazol-5-thiol, namely, 1-benzyl-1H-tetrazol-5-thiol (2) was prepared by refluxing commercially available benzyl isothiocyanate (1) with sodium azide in water. The second step was the synthesis of 1-benzyl-5-[(3-bromopropyl) thio]tetrazole (3) by thio alkylation of tetrazol-5-thiol (2) with 1,3- dibromopropane in tetrahydrofuran. Finally, the 5-thio-substituted tetrazole derivatives 4a-i were prepared by condensation of (3) with the corresponding amine or thiol. The structures of the newly synthesized compounds were characterized by NMR, LC/MS/MS, IR spectral data and elemental analysis. All the synthesized compounds were screened for their antibacterial and antifungal activities.

scholarly journals Synthesis, Characterization and Biological Activity of 5-Arylidene-3-(6,7-dicloro-1,3-benzothiazol-2-yl)-phenyl-3,5-dihydro-4H-imidazol-4-ones

2010 ◽  
Vol 7 (1) ◽  
pp. 81-84
Author(s):  
B. B. Baldaniya
Keyword(s):  
Biological Activity ◽  
Mass Spectra ◽  
Antifungal Activities ◽  
Antibacterial And Antifungal Activities ◽  
Elemental Analyses ◽  
Bacteria And Fungi ◽  
Different Strains ◽  
Antibacterial And Antifungal

Some novel 5-arylidene-3-(6,7-dichloro-1,3-benzothiazol-2-yl)-2-phenyl-3,5-dihydro-4H-imidazol-4-ones (6a-q)have been synthesized and characterized by elemental analyses, IR, NMR, and mass spectra. The products have been evaluated for antibacterial and antifungal activities against different strains of bacteria and fungi.

scholarly journals Synthesis and Biological Activity of 3-Chloro-1-(4-perimidine methylcarbonylamino)-4-phenyl-azetidin-2-one

2009 ◽  
Vol 6 (s1) ◽  
pp. S91-S96 ◽  
Author(s):  
Dinesh R. Panchasara ◽  
Subhash Pande
Keyword(s):  
Acetic Acid ◽  
Biological Activity ◽  
Schiff Base ◽  
Good Yield ◽  
Acetyl Chloride ◽  
Acid Hydrazide ◽  
Aromatic Aldehydes ◽  
Antibacterial And Antifungal Activities ◽  
Schiff Base Derivatives ◽  
Antibacterial And Antifungal

Perimidine-1-acetic acid hydrazide (1) undergoes facile condensation with aromatic aldehydes to afford the corresponding azomethine (i.e. Schiff base) derivatives (2a-h) in good yield. Cyclocondensation of compounds (2a-h) with chloro acetyl chloride affords 3-chloro-1-(4-perimidine methylcarbonylamino)-4-phenyl-azetidin-2-ones (3a-h). The structures of these compounds were established on the basis of analytical and spectral data. The newly synthesized compounds were evaluated for their antibacterial and antifungal activities.

scholarly journals Synthesis and Antimicrobial Activity of Some Novel Substituted Piperazinyl-quinazolin-3(4H)-ones

2008 ◽  
Vol 5 (1) ◽  
pp. 23-33 ◽  
Author(s):  
N. M. Raghavendra ◽  
P. P. Thampi ◽  
P. M. Gurubasavarajaswamy
Keyword(s):  
Antimicrobial Activity ◽  
Spectral Data ◽  
Elemental Analysis ◽  
Single Step ◽  
Mass Spectral Data ◽  
Antifungal Activities ◽  
Mass Spectral ◽  
Antibacterial And Antifungal Activities ◽  
Antibacterial And Antifungal ◽  
Single Step Reaction

Several substituted-quinazolin-3(4H)-ones were synthesized by condensation of 2-chloro-N-(4-oxo-substituted-quinazolin-3(4H)-yl)-acetamides with various substituted piperazines through single step reaction. Elemental analysis, IR,1HNMR and mass spectral data confirmed the structure of the newly synthesized compounds. Synthesized quinazolin-4-one derivatives were investigated for their antibacterial and antifungal activities.

scholarly journals Bicyclic [1,3,4]Thiadiazolo[3,2-α]Pyrimidine Analogues: Novel One-Pot Three-Component Synthesis, Antimicrobial, and Antioxidant Evaluation

2021 ◽  
Vol 11 (5) ◽  
pp. 12925-12936
Keyword(s):  
Spectral Data ◽  
Elemental Analysis ◽  
Sulfonic Acid ◽  
Aromatic Aldehydes ◽  
One Pot ◽  
Antibacterial And Antifungal Activities ◽  
Toluene Sulfonic Acid ◽  
Antioxidant Evaluation ◽  
Pyrimidine Analogues ◽  
Antibacterial And Antifungal

A novel one-pot three-component synthesis of 1-(7-methyl-2,5-diphenyl-5H-[1,3,4]thiadiazolo(3,2-α)pyrimidine-6-yl)ethanone (4a-i) derivatives via cyclo-condensation of substituted 2-amino-[1,3,4]thiadiazole (1a-c), acetylacetone (2) and various aromatic aldehydes (3a-c) in the presence of p-toluene sulfonic acid (PTSA) in acetonitrile. Spectral data and elemental analysis have characterized the newly synthesized compounds. The new analogs were screened for their antibacterial and antifungal activities. The majority of the tested compounds displayed significant to moderate efficacy against most of the designated organisms. Among the tested compounds, 4b, 4e, and 4h showed noteworthy efficacy against selected microbes, and compounds 4c and 4i were found to be exceptionally efficient against selected fungal strains. Compound 4c, 4e, 4f, 4i were also designated as best antioxidants against NOx.

Synthesis and biological activity of imidazole based 1,4-naphthoquinones

2020 ◽  
Vol 44 (17) ◽  
pp. 6889-6901
Author(s):  
Dinkar Choudhari ◽  
Sunita Salunke-Gawali ◽  
Debamitra Chakravarty ◽  
Samir R. Shaikh ◽  
Dipali N. Lande ◽  
...  
Keyword(s):  
Biological Activity ◽  
Drug Resistant ◽  
Structural Studies ◽  
Design And Development ◽  
Antifungal Activities ◽  
Antibacterial And Antifungal Activities ◽  
Antibacterial And Antifungal

Design and development of drugs in multi-drug resistant (MDR) infections have been of growing interest. The syntheses, structural studies, antibacterial and antifungal activities of imidazole-based 1,4-naphthoquinones are studied in this investigation.

scholarly journals Microwave Assisted Synthesis of Novel 1,2,3,4-Tetrahydrocarbazolyl thiazolidin-4-ones and Azetidin-2-ones and its Biological Behavior

2009 ◽  
Vol 6 (s1) ◽  
pp. S374-S380 ◽  
Author(s):  
T. Surendiran ◽  
S. Balasubramanian ◽  
Sivaraj D.
Keyword(s):  
Elemental Analysis ◽  
Mass Spectra ◽  
Thioglycolic Acid ◽  
Biological Behavior ◽  
Microwave Assisted Synthesis ◽  
Antifungal Activities ◽  
Microwave Assisted ◽  
Antibacterial And Antifungal Activities ◽  
New Family ◽  
Antibacterial And Antifungal

A new family of 1,2,3,4 – tetrahydrocarbazolyl thiazolidin-4-ones(4a-e)and 1,2,3,4–tetrahydrocarbazolyl azetidin-2-ones(5a-e)were individually derived usingN-[(α-substituted bezylidenehydrazino) acetyl] -1,2,3,4-tetra-hydrocarbazoles3a-eby cyclization with thioglycolic acid and chloro- acetylchloride respectively. The compounds(3a-e)were prepared by condensation ofN-(hydrazinoacetyl) 1,2,3,4-tetrahydrocarbazole (2) with a series of aldehydes. The compound 2 was obtained by the hydrazinolysis ofN-(chloroacetyl)-1,2,3,4-tetrahydrocarbazole (1). These products were characterized by IR, NMR, MASS spectra and by elemental analysis. All the titled compounds(4a-e)and5(a-e)were screened for antibacterial and antifungal activities.

scholarly journals Chemical Composition and Antimicrobial Activity of the Essential Oil from Flowers of Eryngium triquetrum (Apiaceae) Collected Wild in Sicily

2016 ◽  
Vol 11 (7) ◽  
pp. 1934578X1601100
Author(s):  
Simona Casiglia ◽  
Maurizio Bruno ◽  
Sergio Rosselli ◽  
Felice Senatore
Keyword(s):  
Antimicrobial Activity ◽  
Chemical Composition ◽  
Essential Oil ◽  
Antifungal Activities ◽  
Antibacterial And Antifungal Activities ◽  
Art Works ◽  
Main Components ◽  
Antibacterial And Antifungal ◽  
Historical Art

The chemical composition of the essential oil from flowers of Eringium triquetrum Vahl. collected in Sicily was evaluated by GC and GC-MS. The main components were pulegone (50.6%), piperitenone (30.5%) and menthone (7.0%). Comparison of this oil with other studied oils of Eringium species is discussed. The oil showed good antibacterial and antifungal activities against some microorganisms that infest historical art works.

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