نتایج جستجو برای: antimicrobial compounds

تعداد نتایج: 305540  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید چمران اهواز - دانشکده علوم 1370

1- in a search directed to the reaction of compound)23(the cycloaddition reaction of 1,3- diphenylisobenzofurane)14(with p-benzoquinone)19(,followed by addition of cyclopentadiene was carried out.the specific spacial stracture of its ir,nmr,mass spectra. 2- in another attempt the kinetic stability and behavior of compounds)20(and)23(was studied.the main subject of this study was the highly reve...

2009
S. J. WADHER N. A. KARANDE S. D. SONAWANE P. G. YEOLE

Schiff base, azetidinone and 4-thiazolidinone derivatives of para aminosalicylic acid were synthesised. It was planned to employ the structure based computer aided drug designing (CADD) to Schiff base, azetidinone and 4thiazolidinoneof para aminosalicylic acid. Approach was employed to understand the probable binding of para aminosalicylic acid on the active site of AMpC enzyme of HKY28 which w...

Journal: :Asian Pacific journal of tropical biomedicine 2012
T Kaviarasan Sankar R Siva A Yogamoorthi

Marine organisms have attracted special attention in the last three decades for their ability to produce interesting pharmacological active compounds. Even though all marine organisms have the potential to produce antimicrobial secondary metabolites, the gastropod has the vital sources of secondary metabolites particularly their egg capsule which has the promising antimicrobial secondary metabo...

2014
LENKA DOSTALOVA LENKA DETVANOVA LIBOR KALHOTKA

Some plants contain various compounds, which can influence microbial growth, reproduction or basic cell functions. Phenols, polyphenols, micronutrients, essential oils and other compounds belong to them. These compounds are primarily present in various herbs. Extracts from these plants could be used as natural food preservatives, which could inhibit growth of undesirable microorganisms. In this...

Journal: :Molecules 2015
Aisha R Al-Marhabi Hebat-Allah S Abbas Yousry A Ammar

In continuation of our endeavor towards the development of potent and effective anticancer and antimicrobial agents; the present work deals with the synthesis of some novel tetrazolo[1,5-a]quinoxalines, N-pyrazoloquinoxalines, the corresponding Schiff bases, 1,2,4-triazinoquinoxalines and 1,2,4-triazoloquinoxalines. These compounds were synthesized via the reaction of the key intermediate hydra...

2011
Carmen Limban Mariana Carmen Chifiriuc

In this paper we present the antimicrobial activity of some newly synthesized dibenz[b,e]oxepin derivatives bearing the oximino moiety, and fluorine (F) and trifluoromethyl (CF(3)) group substituents. The chemical structure and purity of the new compounds were assessed by using elemental analysis, NMR and FTIR spectroscopy. The new compounds were screened for their antibacterial activity toward...

2015
Mohd Imran Suroor Ahmad Khan

Purpose: To prepare some 2-amino-4-(7-substituted/unsubstitutedcoumarin-3-yl)-6-(chlorosubstitute dphenyl) pyrimidines as antimicrobial agents. Methods: Some 2-amino-4-(7-substituted/unsubstitutedcoumarin-3-yl)-6-(chlorosubstitutedphenyl) pyrimidines were prepared by reacting 3-chlorosubstitutedphenyl-1-(7-substituted/unsubstituted coumarin-3-yl)prop-2-ene-1-ones with guanidine carbonate. The c...

Journal: :applied food biotechnology 0
najmeh shams department of food science and technology, faculty of agriculture, tarbiat modares university, tehran, iran. mohammad ali sahari department of food science and technology, faculty of agriculture, tarbiat modares university, tehran, iran.

background and objectives: recently, due to the interest of healthy lifestyle demand for research on novel methods of increasing the shelf-life of food products without the necessity of using preservatives has extended rapidly in the world. ability of nanoemulsions to improve global food quality has attracted great attention in food preservation. this is as a result of a number of attributes pe...

Journal: :Molecules 2017
Fatma S Elsharabasy Sobhi M Gomha Thoraya A Farghaly Heba S A Elzahabi

Novel 2-thiazolylphthalazine derivatives were efficiently synthesized under ultrasound irradiation, resulting in high yields and short reaction times after optimization of the reaction conditions. All prepared compounds were fully characterized using spectroscopic methods. They were screened for their antimicrobial activity against Gram-positive and Gram-negative bacteria as well as for antifun...

2017
Mohamed A. M. Abdel Reheim Safaa M. Baker

BACKGROUND Some novel substituted pyrazolone, pyrazolo[3,4-c]pyridazine, pyrazolo[3,4-d]pyrimidine, pyrazolo[3,4-d]thiazolo[3,2-a]pyrimidinone, thieno[3,2-c]pyrazole and pyrazolo[3',4':4,5]thieno[2,3-d]pyrimidine derivatives have been reported to possess various pharmacological activities like antimicrobial, antitumor and anti-inflammatory. RESULTS A novel series of azoles and azines were des...

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