نتایج جستجو برای: trans α

تعداد نتایج: 229033  

Journal: :Organic & biomolecular chemistry 2013
Manman Sun Huandong Wu Weiliang Bao

A novel methodology for the α-vinylation of amides with arylacetylenes under metal-free conditions has been introduced. This methodology provides a new protocol to synthesize allylamines. In each product, the amount of the cis-isomer was more than that of the trans-isomer.

Journal: :Journal of the American Chemical Society 2013
Shaolin Zhu Nootaree Niljianskul Stephen L Buchwald

A highly enantio- and regioselective copper-catalyzed hydroamination reaction of alkenes has been developed using diethoxymethylsilane and esters of hydroxylamines. The process tolerates a wide variety of substituted styrenes, including trans-, cis-, and β,β-disubstituted styrenes, to yield α-branched amines. In addition, aliphatic alkenes coupled to generate exclusively the anti-Markovnikov hy...

2012
Dafne Müller

Under physiological conditions, the trans-presentation of interleukin-15 (IL-15) by the IL-15 receptor α on the cell surface allows to confine and tune the IL-15-mediated immune responses. Therefore, targeting strategies that mimic this situation at the tumor sites appear especially promising for anticancer immunotherapy.

Journal: :International journal of ophthalmology 2015
Hong-Yan Zhou Wei Zhong Hong Zhang Miao-Miao Bi Shuang Wang Wen-Song Zhang

Fungal keratitis (FK) is a worldwide visual impairment disease. This infectious fungus initiates the primary innate immune response and, later the adaptive immune response. The inflammatory process is related to a variety of immune cells, including macrophages, helper T cells, neutrophils, dendritic cells, and Treg cells, and is associated with proinflammatory, chemotactic and regulatory cytoki...

2010
David M Hodgson Zhaoqing Xu

N-Phosphonate terminal aziridines undergo lithium 2,2,6,6-tetramethylpiperidide-induced N- to C-[1,2]-anionic phosphonyl group migration under experimentally straightforward conditions, to provide a stereocontrolled access to synthetically valuable trans-α,β-aziridinylphosphonates. The utility of this chemistry has been demonstrated in the asymmetric synthesis of a β-aminophosphonate.

2015
Dae Ho Jin

In this paper, we study half lightlike submanifolds M of an indefinite generalized Sasakian space form M̄(f1, f2, f3), with an indefinite trans-Sasakian structure of type (α, β), subject to the condition that the structure vector field of M̄ is tangent to M . Our main result is a characterization theorem for such a half lightlike submanifold. Mathematics Subject Classification: 53C25, 53C40, 53C50

Journal: :The Journal of biological chemistry 2014
Yongsoo Park Wensi Vennekate Halenur Yavuz Julia Preobraschenski Javier M Hernandez Dietmar Riedel Peter Jomo Walla Reinhard Jahn

Neuronal exocytosis is mediated by soluble N-ethylmaleimide-sensitive factor attachment protein receptor (SNARE) proteins. Before fusion, SNARE proteins form complexes bridging the membrane followed by assembly toward the C-terminal membrane anchors, thus initiating membrane fusion. After fusion, the SNARE complex is disassembled by the AAA-ATPase N-ethylmaleimide-sensitive factor that requires...

Journal: :Organic & biomolecular chemistry 2013
Ileana Guzzetti Monica Civera Francesca Vasile Elena M Araldi Laura Belvisi Cesare Gennari Donatella Potenza Roberto Fanelli Umberto Piarulli

NMR experiments (transferred NOE and Saturation Transfer Difference) were used to shed light on the binding epitope of RGD peptidomimetics 1-3 with integrins αvβ3 and α(IIb)β3, expressed on the membrane of ECV304 bladder cancer cells and human platelets, respectively. The NMR results were supported by docking calculations of 1-3 in the active sites of αvβ3 and α(IIb)β3 integrin receptors and we...

Journal: :Bangladesh Journal of Botany 2022

The change of essential oil ratios and components five different basil genotypes harvested at times (00:00, 06:00, 12:00, 18:00) in day was investigated. Plants were grown under the field conditions oils plants extracted by hydro-distillation method. Identification performed GC-MS. It G5 genotype that had highest content all plant parts, regardless time day. (2.8%) obtained from dry leaves samp...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید