scholarly journals Σχεδιασμός, σύνθεση και μελέτη βιολογικής δράσης θειαζολικών παραγώγων

2014 ◽  
Author(s):  
Κωνσταντίνος Λιάρας

This thesis presents and discusses the design, synthesis and evaluation ofbiological activity of twenty-two (22) novel thiazole derivatives, twelve (12) of whichare chalcones, two (2) aminopyrimidines and eight (8), N-phenylpyrazolines.Prediction of biological activity spectra for all compounds was performed bythe program PASS.The aim was to design compounds that would combine antimicrobial and antiinflammatoryactivity, taking into account the wide spectrum of biological activitiesof thiazole derivatives, as well as, the interesting pharmacological properties ofchalcones, aminopyrimidines and N-phenylpyrazolines.The final compounds were identified by elemental analysis and spectroscopicmethods.Σheoritical calculations of several physicochemical parameters, includinglipophilicity, were performed for all final compounds.The evaluation of antimicrobial activity of the compounds against selected Gram(+) and Gram (-) bacteria and fungi was carried out in vitro using microdilution method.For a number of selected compounds, DNA gyrase inhibition assay was alsoperformed, in order to explain the possible mechanism of their antibacterial activity.The in vivo evaluation of anti-inflammatory activity of compounds was carriedout by use of carrageenin induced mouse paw edema model, while selected compoundswere also tested in vitro for their ability to inhibit cycloxygenase (COX 1 and 2).

2018 ◽  
Vol 93 (3) ◽  
pp. 364-372 ◽  
Author(s):  
Ajmer Singh Grewal ◽  
Rajeev Kharb ◽  
Deo Nandan Prasad ◽  
Jagdeep Singh Dua ◽  
Viney Lather

2020 ◽  
Vol 21 (7) ◽  
pp. 2591
Author(s):  
Pablo Silva ◽  
Maria de Almeida ◽  
Jamire Silva ◽  
Sonaly Albino ◽  
Renan Espírito-Santo ◽  
...  

The compound (E)-2-cyano-3-(1H-indol-3-yl)-N-phenylacrylamide (ICMD-01) was designed and developed based on the structures of clinically relevant drugs indomethacin and paracetamol through the molecular hybridization strategy. This derivative was obtained by an amidation reaction between substituted anilines and ethyl 2-cyanoacetate followed by a Knoevenagel-type condensation reaction with indole aldehyde that resulted in both a viable synthesis and satisfactory yield. In order to assess the immunomodulatory and anti-inflammatory activity, in vitro assays were performed in J774 macrophages, and significant inhibitions (p < 0.05) of the production of nitrite and the production of cytokines (IL-1β and TNFα) in noncytotoxic concentrations were observed. The anti-inflammatory effect was also studied via CFA-induced paw edema in vivo tests and zymosan-induced peritonitis. In the paw edema assay, ICMD01 (50 mg kg−1) showed satisfactory activity, as did the group treated with dexamethasone, reducing edema in 2–6 h. In addition, there was no significant inhibition of PGE2, IL-1β or TNFα in vivo. Moreover, in the peritonitis assay that assesses leukocyte migration, ICMD-01 exhibited promising results. Therefore, these preliminary studies demonstrate this compound to be a strong candidate for an anti-inflammatory drug together with an improved gastrointestinal safety profile when compared to the conventional anti-inflammatory drugs.


2009 ◽  
Vol 20 (3) ◽  
pp. 583-590 ◽  
Author(s):  
Sudha Garg ◽  
Kanchan Kothari ◽  
Shankar R. Thopate ◽  
Aniruddha K. Doke ◽  
Pradeep K. Garg

2016 ◽  
Vol 59 (13) ◽  
pp. 6201-6220 ◽  
Author(s):  
Adam J. Rosenberg ◽  
Hui Liu ◽  
Hongjun Jin ◽  
Xuyi Yue ◽  
Sean Riley ◽  
...  

2018 ◽  
Vol 11 (3) ◽  
pp. 65
Author(s):  
Alicia Vall-Sagarra ◽  
Shanna Litau ◽  
Clemens Decristoforo ◽  
Björn Wängler ◽  
Ralf Schirrmacher ◽  
...  

2018 ◽  
Vol 61 (5) ◽  
pp. 1800-1820 ◽  
Author(s):  
Shameem Sultana Syeda ◽  
Gladis Sánchez ◽  
Kwon Ho Hong ◽  
Jon E. Hawkinson ◽  
Gunda I. Georg ◽  
...  

RSC Advances ◽  
2017 ◽  
Vol 7 (54) ◽  
pp. 33851-33867 ◽  
Author(s):  
Yao Chen ◽  
Hongzhi Lin ◽  
Jie Zhu ◽  
Kai Gu ◽  
Qi Li ◽  
...  

A series of tacrine–cinnamic acid hybrids are synthesized as multi-target cholinesterase inhibitors against Alzheimer's disease.


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