نتایج جستجو برای: oxime

تعداد نتایج: 2545  

2009
Qiang Guo Lanying Sun Huiyuan Guo Mingliang Liu

The title compound, C(8)H(18)N(4)O(2) (2+)·2Cl(-), contains two oxime groups. The methyl oxime group has a Z configuration, and the ethyl oxime group is disordered, with both Z and E configurations in occupancies of 0.840 (8) and 0.160 (8), respectively. In the crystal structure, there are a number of N-H⋯Cl hydrogen bonds.

Journal: :Parasitologia 2021

Dirofilaria immitis and repens are mosquito-borne pathogens responsible for dirofilariasis in humans animals. Their transmission spread depend on the activity of vectors frequency hosts a given area. Here, we investigated efficacy monthly multimodal prophylactic (MMP) strategy against canine Corsica Island (France). The study was conducted as evidence an trial which eighty dogs were divided int...

Journal: :Chemico-biological interactions 2013
Donald M Maxwell Karen M Brecht Richard E Sweeney

Administration of oxime therapy is currently the standard approach used to reverse the acute toxicity of organophosphorus (OP) compounds, which is usually attributed to OP inhibition of acetylcholinesterase (AChE). Rate constants for reactivation of OP-inhibited AChE by even the best oximes, such as HI-6 and obidoxime, can vary >100-fold between OP-AChE conjugates that are easily reactivated an...

Journal: :Molecules 2017
Joanna Kozłowska Bartłomiej Potaniec Barbara Żarowska Mirosław Anioł

O -Alkyl derivatives of naringenin ( 1a - 10a ) were prepared from naringenin using the corresponding alkyl iodides and anhydrous potassium carbonate. The resulting products were used to obtain oximes ( 1b - 10b ). All compounds were tested for antimicrobial activity against Escherichia coli ATCC10536, Staphylococcus aureus DSM799, Candida albicans DSM1386, Alternaria alternata CBS1526, Fusariu...

Journal: :Chemical communications 2010
Sundae Kim Nurul Ain Bte Kamaldin Sol Kang Sunggak Kim

Sulfonyl oxime ethers undergo facile nucleophilic substitutions with various nucleophiles to yield the corresponding oxime ethers which provide an easy access to amines and carbonyl compounds.

Journal: :Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology 2012
Nilanjana Chowdhury Sansa Dutta Swagata Dasgupta N D Pradeep Singh Mithu Baidya S K Ghosh

A new series of (E)-pyrene oxime ester conjugates of carboxylic acids including amino acids were synthesized by coupling with an environment sensitive fluorophore 1-acetylpyrene. (E)-Pyrene oxime esters exhibited strong fluorescence properties and interestingly their fluorescence properties were found to be highly sensitive to the surrounding environment. Direct irradiation of the (E)-pyrene ox...

2011
Jiří Kassa Jana Žďárová Karasová Vendula Šepsová Jiří Bajgar

This study compares the abilities of the newly developed bispyridinium oxime K203 with currently available oximes (HI-6, obidoxime, and trimedoxime) in the reactivation of sarin-inhibited acetylcholinesterase and the reduction of the acute toxicity of sarin. The percentage of reactivation of sarin-inhibited rat blood and tissue acetylcholinesterase was determined in vivo and it was shown that t...

Journal: :The journal of physical chemistry. A 2009
David C French Marlon R Lutz Chichi Lu Matthias Zeller Daniel P Becker

The equilibration of the saddle conformer of cyclotriveratrylene (CTV) oxime to the corresponding crown conformer was followed by (1)H NMR in five separate solvents, and kinetic and thermodynamic parameters were determined from the NMR data. The oxime saddle conformers of 3 are favored in CDCl(3) (K(eq) = [saddle]/[crown] = 1.4), whereas the CTV oxime crown conformer 3a is favored in three more...

Journal: :Journal of Organic Chemistry Research 2015

Journal: :Chemico-biological interactions 2010
Tsung-Ming Shih Jacob W Skovira John C O'Donnell John H McDonough

This study compared the ability of nine oximes (HI-6, HLö7, MMB-4, TMB-4, carboxime, ICD585, ICD692, ICD3805, and 2-PAM) to reactivate in vivo cholinesterase (ChE) in blood, brain, and peripheral tissues in guinea pigs intoxicated by one of four organophosphorus nerve agents. Two bis-pyridinium compounds without an oxime group, SAD128 and ICD4157, served as non-oxime controls. Animals were inje...

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