نتایج جستجو برای: thiourea

تعداد نتایج: 2681  

Journal: :Indian journal of physiology and pharmacology 1988
Y Venkateswarlu B Janakiram G R Reddy

Scorpion (Buthus tamulus) venom was subjected to neutralization by treating the venom with various chemicals such as hydrochloric acid, sodium hydroxide, thiourea, formaldehyde, zinc sulphate, acetic acid and trichloroacetic acid. The venom was also subjected to heat treatment. The levels of total protein, free amino acids and protease activity in neutralized venom decreased significantly. The ...

Journal: :Bioorganic & medicinal chemistry 2015
Bianca K Verlinden Marna de Beer Boobalan Pachaiyappan Ethan Besaans Warren A Andayi Janette Reader Jandeli Niemand Riette van Biljon Kiplin Guy Timothy Egan Patrick M Woster Lyn-Marie Birkholtz

A new series of potent potent aryl/alkylated (bis)urea- and (bis)thiourea polyamine analogues were synthesized and evaluated in vitro for their antiplasmodial activity. Altering the carbon backbone and terminal substituents increased the potency of analogues in the compound library 3-fold, with the most active compounds, 15 and 16, showing half-maximal inhibitory concentrations (IC50 values) of...

1997
George A. Olah Arwed Burrichter Golam Rasul Karl O. Christe Surya Prakash

Mono-, di-, and triprotonation of thiourea (H2N)2CS, was studied by low-temperature 1H, 13C, and 15N NMR spectroscopy in superacidic systems. In FSO3H/SO2ClF at -80 °C, thiourea is monoprotonated exclusively at the sulfur atom giving rise to [(H2N)2CSH]. The addition of SbF5 to this system increases the acidity of the solution and results in the observation of the diprotonated species [H3NC(SH)...

2006
Yves Pommier Leonard A. Zwelling Michael R. Mattern Leonard C. Erickson Donna Kerrigan Ronald Schwartz Kurt W. Kohn

The free radical scavengers, dimethyl sulfoxide (MezSO) and thiourea, were used to assess the role of free radicals in the production of intercalator-induced DNA breaks and cytotoxicity in mouse leukemia L1210 cells. Both agents decreased X-ray break production, and this decrease was comparable in magni tude to the degree of inhibition of X-ray-induced cell killing. By contrast, Me2SO increased...

2017
Jasvir Singh

Organic compounds containing thiourea function find many industrial, agricultural, pharmaceutical and analytical applications. Consequently, convenient, reliable, rugged and cost-effective methods for ensuring the quality of commercial products based on it are highly desirable. The case with which hydrogen peroxide in the presence of an excess of sodium hydroxide oxdatively desulphurise the thi...

Journal: :Bioorganic & medicinal chemistry letters 2013
Courtney A Barker Sarah E Allison Soumaya Zlitni Nick Duc Nguyen Rahul Das Giuseppe Melacini Alfredo A Capretta Eric D Brown

The discovery of novel small molecules that function as antibacterial agents or cellular probes of biology is hindered by our limited understanding of bacterial physiology and our ability to assign mechanism of action. We previously employed a chemical genomic strategy to identify a novel small molecule, MAC13243, as a likely inhibitor of the bacterial lipoprotein targeting chaperone, LolA. Her...

Journal: :Journal of environmental sciences 2018
Yanfeng Wang Wei Chen Xiao Chen Huajun Feng Dongsheng Shen Bin Huang Yufeng Jia Yuyang Zhou Yuxiang Liang

CdS/MoS2, an extremely efficient photocatalyst, has been extensively used in hydrogen photoproduction and pollutant degradation. CdS/MoS2 can be synthesized by a facile one-step hydrothermal process. However, the effect of the sulfur source on the synthesis of CdS/MoS2via one-step hydrothermal methods has seldom been investigated. We report herein a series of one-step hydrothermal preparations ...

Journal: :Acta crystallographica. Section C, Crystal structure communications 2003
Lilianna Checińska Lesław Sieroń Maria Bukowska-Strzyzewska Zbigniew H Kudzin László Fábián

The structures of diphenyl [3-methyl-1-(3-phenylthioureido)butyl]phosphonate and diphenyl [2-methyl-1-(3-phenylthioureido)butyl]phosphonate, both C(24)H(27)N(2)O(3)PS, are reported. In both compounds, the thiourea moiety adopts a syn-syn conformation (i.e. the S-C-N-C torsion angles are synperiplanar), which enables N-H...O hydrogen bonds to be formed between centrosymmetrically related molecul...

Journal: :Carbohydrate research 2007
Oliver Sperling Michael Dubber Thisbe K Lindhorst

Functionalized carbohydrate-centered glycoclusters formed the starting material for the synthesis of tagged oligosaccharide and glycoconjugate mimetics, which were obtained by thiourea-bridging, peptide coupling and in particular squaric diester-mediated coupling. The latter method could also be utilized to provide new multivalent glycoconjugates, which were tested for their anti-adhesive prope...

2012
Takasuke Matsuo Masako Sekii Hiroshi Suga Nobuo Nakamura Hideaki Chihara

für Naturforschung in cooperation with the Max Planck Society for the Advancement of Science under a Creative Commons Attribution 4.0 International License. Dieses Werk wurde im Jahr 2013 vom Verlag Zeitschrift für Naturforschung in Zusammenarbeit mit der Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. digitalisiert und unter folgender Lizenz veröffentlicht: Creative Commons Namen...

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