Recent advances in photo-irradiated synthesis of bioactive heterocycles

Author(s):  
Bubun Banerjee ◽  
Gurpreet Kaur
Author(s):  
Michelyne Haroun ◽  
Christophe Tratrat ◽  
Katharigatta N. Venugopala ◽  
Hafedh Kochkar ◽  
Anroop B. Nair

Abstract:: 1,2,3-Triazole, a five-membered heterocyclic nucleus, is widely recognized as a key chromophore of great value in medicinal chemistry for delivering compounds possessing innumerable biological potentials encompassing antimicrobial, antitubercular, antidiabetic, antiviral, antitumor, antioxidants and anti-inflammatory. Particularly, in the past years, diverse conjugates carrying this biologically valuable core were reported owing to their attracting fungicidal potentials and their potent actions on diverse infective targets. Hence, hybridization of 1,2,3-triazole with other antimicrobial pharmacophores appears to be a judicious strategy to develop new efficacious anti-fungal candidates aiming at combating the emergence of drug-sensitive and drug-resistant infection disease. Thus, the current review highlights the recent advances of this promising category of 1,2,3-triazole-containing hybrids incorporating diverse varieties of bioactive heterocycles such as conozole, coumarin, imidazole, benzimidazole, pyrazole, indole, oxindole, chromene, pyrane, quinazoline, chalcone, isoflavone, car-bohydrates, amides. It underlies their inhibition behavior against different panels of infectious fungal species for the period during 2015-2020.


2020 ◽  
Vol 7 (1) ◽  
pp. 5-22 ◽  
Author(s):  
Bubun Banerjee ◽  
Gurpreet Kaur

This review deals with the recent advances on the microwave-assisted synthesis of bioactive heterocycles without using any catalyst under various reaction conditions. Synthesis of various biologically promising N-heterocycles, O-heterocycles, S-heterocycles, N as well as O- or S-heterocycles reported so far under catalyst-free microwave-irradiated conditions are discussed in this review.


1988 ◽  
Vol 132 ◽  
pp. 525-530
Author(s):  
Raffaele G. Gratton

The use CCD detectors has allowed a major progress in abundance derivations for globular cluster stars in the last years. Abundances deduced from high dispersion spectra now correlates well with other abundance indicators. I discuss some problems concerning the derivation of accurate metal abundances for globular clusters using high dispersion spectra from both the old photographic and the most recent CCD data. The discrepant low abundances found by Cohen (1980), from photographic material for M71 giants, are found to be due to the use of too high microturbulences.


2020 ◽  
Vol 7 (8) ◽  
pp. 1022-1060 ◽  
Author(s):  
Wenbo Ma ◽  
Nikolaos Kaplaneris ◽  
Xinyue Fang ◽  
Linghui Gu ◽  
Ruhuai Mei ◽  
...  

This review summarizes recent advances in C–S and C–Se formations via transition metal-catalyzed C–H functionalization utilizing directing groups to control the site-selectivity.


2006 ◽  
Vol 73 ◽  
pp. 109-119 ◽  
Author(s):  
Chris Stockdale ◽  
Michael Bruno ◽  
Helder Ferreira ◽  
Elisa Garcia-Wilson ◽  
Nicola Wiechens ◽  
...  

In the 30 years since the discovery of the nucleosome, our picture of it has come into sharp focus. The recent high-resolution structures have provided a wealth of insight into the function of the nucleosome, but they are inherently static. Our current knowledge of how nucleosomes can be reconfigured dynamically is at a much earlier stage. Here, recent advances in the understanding of chromatin structure and dynamics are highlighted. The ways in which different modes of nucleosome reconfiguration are likely to influence each other are discussed, and some of the factors likely to regulate the dynamic properties of nucleosomes are considered.


1950 ◽  
Vol 34 (5) ◽  
pp. 1363-1380
Author(s):  
Theodore L. Badger ◽  
William E. Patton

1990 ◽  
Vol 23 (2) ◽  
pp. 251-270
Author(s):  
Martin P. Sandler, MD ◽  
James A. Patton ◽  
Robert H. Ossoff

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