115504-61-5Relevant academic research and scientific papers
Synthesis, characterization and biological studies of mononuclear copper(II) complexes with ciprofloxacin and N, O donor ligands
Patel, Mohan N.,Patel, Chintan R.,Joshi, Hardik N.
, p. 51 - 55 (2013)
The mixed ligand Cu(II) complexes of ciprofloxacin and N, O donor Schiff bases have been prepared and characterized by physicochemical techniques. In these complexes, ciprofloxacin acts as bidentate deprotonated ligand bound to the metal through the pyrid
Synthesis and biological evaluation in vitro and in silico of N-propionyl-N′-benzeneacylhydrazone derivatives as cruzain inhibitors of Trypanosoma cruzi
Delgado-Maldonado, Timoteo,Nogueda-Torres, Benjamín,Espinoza-Hicks, José C.,Vázquez-Jiménez, Lenci K.,Paz-González, Alma D.,Juárez-Saldívar, Alfredo,Rivera, Gildardo
, (2020)
Abstract: An N-acylhydrazone scaffold has been used to develop new drugs with diverse biological activities, including trypanocidal activity against different strains of Trypanosoma cruzi. However, their mechanism of action is not clear, although in T. cr
Sodium hypochlorite-mediated synthesis of 2,5-disubstituted 1,3,4-oxadiazoles from hydrazides and aldehydes
Paidi, Karuna Raman,Kolli, Murali Krishna,Reddy, Eeda Koti,Pedakotla, Venkata Ramana
, p. 371 - 376 (2020/05/04)
[Figure not available: see fulltext.] A simple and convenient method for the synthesis of 2,5-disubstituted 1,3,4-oxadiazoles has been developed. Structurally divergent symmetrical and unsymmetrical 2,5-disubstituted 1,3,4-oxadiazoles can be obtained in moderate to high yields via NaOCl-mediated oxidative cyclization of N-acylhydrazones, generated in situ from aliphatic and aromatic hydrazides and aldehydes.
Oxadiazole based Os(IV) compounds as potential DNA intercalator and cytotoxic agents
Bhatt, Bhupesh S.,Patel, Mohan N.,Pathak, Chandramani,Pursuwani, Bharat H.,Vaidya, Foram U.
, (2020/07/10)
Os(IV) compounds and ligands have been synthesized and well characterized. DNA cleavage tendency of compounds has been evaluated using gel electrophoresis and binding behavior has been evaluated by viscosity measurements, absorption titration, fluorescenc
Synthesis of amino-diamondoid pharmacophores: Via photocatalytic C-H aminoalkylation
Weigel, William K.,Dang, Hoang T.,Yang, Hai-Bin,Martin, David B. C.
supporting information, p. 9699 - 9702 (2020/09/03)
We report a direct C-H aminoalkylation reaction using two light-activated H-atom transfer catalyst systems that enable the introduction of protected amines to native adamantane scaffolds with C-C bond formation. The scope of adamantane and imine reaction partners is broad and deprotection provides versatile amine and amino acid building blocks. Using readily available chiral imines, the enantioselective synthesis of the saxagliptin core and rimantadine derivatives is also described.
An efficient one-pot synthesis of 2,5-disubstituted-1,3,4-thiadiazoles from aldehydes and hydrazides using Lawesson’s reagent
Ko, Inseok,Park, Soojin,Lee, Goeun,Kim, Hakwon
, p. 67 - 78 (2019/03/07)
Five-membered heterocyclic-ring systems, such as thiadiazoles, remain an important and prevalent scaffold in the development of novel leads in medicinal chemistry for a variety of therapeutic targets. A two-step, one-pot synthesis of 2,5-disubstituted-1,3,4-thiadiazole derivatives from aryl hydrazides and aryl aldehydes using Lawesson’s reagent is described, yielding 2,5-disubstituted-1,3,4-thiadiazoles in moderate-to-high yields. Based on preliminary biological experiments, some of the newly synthesized thiadiazoles show antioxidant activity.
Iron(III)/TEMPO-Catalyzed Synthesis of 2,5-Disubstituted 1,3,4-Oxadiazoles by Oxidative Cyclization under Mild Conditions
Zhang, Guofu,Yu, Yidong,Zhao, Yiyong,Xie, Xiaoqiang,Ding, Chengrong
supporting information, p. 1373 - 1377 (2017/06/27)
A simple and efficient cationic Fe(III)/TEMPO-catalyzed oxidative cyclization of aroyl hydrazones has been developed for the synthesis of 2,5-disubstituted 1,3,4-oxadiazole derivatives. The reaction offers a broad scope, good functional-group tolerance, and high yields under mild conditions in the presence of O 2.
A mild and efficient three-component synthesis of secondary and tertiary homoallylic hydrazides
Lee, Bum Seok,Jang, Doo Ok
, p. 3123 - 3130 (2013/06/26)
A three-component reaction that involved a carbonyl compound, benzoylhydrazine, allyl bromide, and indium in the presence of readily available Zn(ClO4)2·6H2O was developed for the syntheses of secondary and tertiary homoal
3-Acetyl-2,5-diaryl-2,3-dihydro-1,3,4-oxadiazoles: A new scaffold for the selective inhibition of monoamine oxidase B
MacCioni, Elias,Alcaro, Stefano,Cirilli, Roberto,Vigo, Sara,Cardia, Maria Cristina,Sanna, Maria Luisa,Meleddu, Rita,Yanez, Matilde,Costa, Giosuè,Casu, Laura,Matyus, Peter,Distinto, Simona
experimental part, p. 6394 - 6398 (2011/11/06)
3-Acetyl-2,5-diaryl-2,3-dihydro-1,3,4-oxadiazoles were designed, synthesized, and tested as inhibitors against human monoamine oxidase (MAO) A and B isoforms. Several compounds, obtained as racemates, were identified as selective MAO-B inhibitors. The enantiomers of some derivatives were separated by enantioselective HPLC and tested. The R-enantiomers always showed the highest activity. Docking study and molecular dynamic simulations demonstrated the putative binding mode. We conclude that these 1,3,4-oxadiazoles derivatives are promising reversible and selective MAO-B inhibitors.
Cu(II) catalyzed imine C-H functionalization leading to synthesis of 2,5-substituted 1,3,4-oxadiazoles
Guin, Srimanta,Ghosh, Tuhin,Rout, Saroj Kumar,Banerjee, Arghya,Patel, Bhisma K.
supporting information; body text, p. 5976 - 5979 (2012/01/02)
A direct access to symmetrical and unsymmetrical 2,5-disubstituted [1,3,4]-oxadiazoles has been accomplished through an imine C-H functionalization of N-arylidenearoylhydrazide using a catalytic quantity of Cu(OTf)2. This is the first example of amidic oxygen functioning as a nucleophile in a Cu-catalyzed oxidative coupling of an imine C-H bond. These reactions can be performed in air atmosphere and moisture making it exceptionally practical for application in organic synthesis.
