scholarly journals Microwave-Assisted Synthesis and Biological Evaluation of Dihydropyrimidinone Derivatives as Anti-Inflammatory, Antibacterial, and Antifungal Agents

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Anjna Bhatewara ◽  
Srinivasa Rao Jetti ◽  
Tanuja Kadre ◽  
Pradeep Paliwal ◽  
Shubha Jain

A simple protocol for the efficient preparation of aryl and heteroaryl substituted dihydropyrimidinone has been achieved via initial Knoevenagel, subsequent addition, and final cyclization of aldehyde, ethylcyanoacetate, and guanidine nitrate in the presence of piperidine as a catalyst in solvent-free under microwave irradiation. The synthesized compounds showed a good anti-inflammatory, antibacterial, and antifungal activity.

Author(s):  
Jatin Vora ◽  
Kartik Vyas

A cogent synthesis of completely new compound series of by 6-(3,5-bis(trifluoromethyl)phenyl)-4-(4-chlorophenyl)-3,4-dihydro pyrimidine-2(1H)-one (Biginelli reaction) was achieved by continue heating of (E)-1-(3,5-bis(trifluoromethyl)phenyl)-3-(substituted phenyl)prop-2-en-1-one and urea for 5 hours with 40% KOH and ethyl alcohol. (E)-1-(3,5-bis(trifluoromethyl)phenyl)-3-(substituted phenyl)prop-2-en-1-one is produced by Claisen-Schmidt Condensation. In this condensation 1-(3,5-bis(trifluoromethyl)phenyl)ethanone and different aldehyde are mixed. All the novel compound series were characterized by infrared and 1H nuclear magnetic resonance and mass spectroscopic techniques and by elemental analyses. The newly synthesized compounds were evaluated for their antibacterial and antifungal activity


Author(s):  
Neeraj Kumar ◽  
Dhruti Bhatt ◽  
Chandra Shekhar Sharma ◽  
Hamendra Pratap Singh ◽  
Harshda Pandiya ◽  
...  

A series of of Chalconyl Incorporated Schiff’s Bases of Sulphonamides was synthesized by reacting substituted chalcone derivatives with Sulphacetamide sodium in methanol. All the title compounds synthesized (2a-2d) were tested for antibacterial and antifungal activity using E. coli, P. aeruginosa, S. aureus, S. pyogenus and C. albicans, A. niger and A. clavatus respectively as microbial strains and Sulphacetamide sodium as standard. The compound 2d showed significant antibacterial activity and 2a showed moderate antifungal activity as compared with Sulphacetamide Sodium.


2014 ◽  
Vol 24 (19) ◽  
pp. 4626-4629 ◽  
Author(s):  
Bianca da S. Ferreira ◽  
Angelina M. de Almeida ◽  
Thiago C. Nascimento ◽  
Pedro P. de Castro ◽  
Vania L. Silva ◽  
...  

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