scholarly journals ON STANDARD TARTAR EMETIC AND ITS STRUCTURAL FORMULA.

1902 ◽  
Vol 24 (9) ◽  
pp. 828-847 ◽  
Author(s):  
F. E. Hale
2020 ◽  
Author(s):  
Jie Cheng ◽  
Yuchen Tang ◽  
Baoquan Bao ◽  
Ping Zhang

<p><a></a><a></a><a></a><a><b>Objective</b></a>: To screen all compounds of Agsirga based on the HPLC-Q-Exactive high-resolution mass spectrometry and find potential inhibitors that can respond to 2019-nCoV from active compounds of Agsirga by molecular docking technology.</p> <p><b>Methods</b>: HPLC-Q-Exactive high-resolution mass spectrometry was adopted to identify the complex components of Mongolian medicine Agsirga, and separated by the high-resolution mass spectrometry Q-Exactive detector. Then the Orbitrap detector was used in tandem high-resolution mass spectrometry, and the related molecular and structural formula were found by using the chemsipider database and related literature, combined with precise molecular formulas (errors ≤ 5 × 10<sup>−6</sup>) , retention time, primary mass spectra, and secondary mass spectra information, The fragmentation regularities of mass spectra of these compounds were deduced. Taking ACE2 as the receptor and deduced compounds as the ligand, all of them were pretreated by discover studio, autodock and Chem3D. The molecular docking between the active ingredients and the target protein was studied by using AutoDock molecular docking software. The interaction between ligand and receptor is applied to provide a choice for screening anti-2019-nCoV drugs.</p> <p><b>Result</b>: Based on the fragmentation patterns of the reference compounds and consulting literature, a total of 96 major alkaloids and stilbenes were screened and identified in Agsirga by the HPLC-Q-Exactive-MS/MS method. Combining with molecular docking, a conclusion was got that there are potential active substances in Mongolian medicine Agsirga which can block the binding of ACE2 and 2019-nCoV at the molecular level.</p>


1938 ◽  
Vol 21 (2) ◽  
pp. 314-318
Author(s):  
Jehiel Davidson ◽  
George N Pulley ◽  
C C Cassil
Keyword(s):  

1963 ◽  
Vol 41 (5) ◽  
pp. 1359-1367 ◽  
Author(s):  
Neil R. Fetter ◽  
Bodo Bartocha ◽  
Frederick E. Brinckman Jr. ◽  
Donald W. Moore

The reactions of Me3Al with Me2NNMe2 and Me2NCH2NMe2 have yielded complexes whose n.m.r. spectra suggest cyclic structures. They have the formulas Me3Al:Me2NNMe2 and Me3Al:Me2NCH2NMe2 respectively. Me3Al reacts with Me2NCH2CH2NMe2 to form a complex with a linear structure and the formula Me3Al:Me2NCH2CH2NMe2:AlMe3.The reactions of H3Al:NMe3 with several methyl hydrazines have yielded the following compounds: [—Al(HNNHMe)NHNMe—]n, [—HAlNNMe2—]n, H2Al—NHNEt2, [(—HAlNNEt2—):NMe3]n, and H2Al—NMe2. No reaction occurred between H3Al·(Et2O)n and tetramethylhydrazine and the reaction of 3 moles of H2NNMe2 with 1 mole of H3Al:NMe3 yielded a compound for which no structural formula could be assigned, but which had emperical formula C4H15N5Al.


2020 ◽  
Vol 152 ◽  
pp. 112-123
Author(s):  
Oleg S. Sukharev ◽  

The purpose of the study is to determine the existing growth models of the countries of the Eurasian Union by GDP expenditures and sectors (manufacturing, transactional raw materials). The research methodology is a macroeconomic analysis of the dynamics of the main indicator of economic development — gross domestic product. The research method is a structural analysis that allows you to get a structural formula for calculating the contribution of each component of GDP to the growth rate, as well as a comparative analysis of the dynamics models of the countries in question — Armenia, Belarus, Kazakhstan, Kyrgyzstan, Russia. The result of the study is the obtained structural relationships that make it possible to measure the influence of the investment structure on the growth rate, the criteria describing economic growth with a corresponding change in the country's national wealth, as well as the identification of models of economic dynamics by the countries of the Eurasian Union. It is indicative that the transaction sector dominates in Kazakhstan and Russia, while in other countries a mixed model is found, or industrial growth as in Belarus. According to the components of GDP and expenditures of the country, either a mixed or a consumer model is found (Kyrgyzstan, Russia), however, the contribution of government spending to the growth rate is provided only in Kazakhstan. It was also revealed that the reaction to the crisis of 2009 and 2015 was fundamentally different for the countries of the Eurasian Union. The search for the factor conditions of such a prevailing dynamics, as well as the influence of union economic relations on the formation of a growth model in each country, requires an expansion of research and an analytical perspective


2016 ◽  
Vol 31 (4) ◽  
pp. 292-294 ◽  
Author(s):  
V. D. Zhuravlev ◽  
A. P. Tyutyunnik ◽  
N. I. Lobachevskaya

A polycrystalline sample of Ca4ZrGe3O12 was synthesized using the nitrate–citrate method and heated at 850–1100 °C. Structural refinement based on X-ray powder diffraction data showed that the crystal structure is of the garnet type with a cubic unit-cell parameter [a = 12.71299(3) Å] and the space group Ia$\bar 3$d. The structural formula is presented as Ca3[CaZr]octa[Ge]tetraO12.


BMJ ◽  
1915 ◽  
Vol 2 (2864) ◽  
pp. 745-745 ◽  
Author(s):  
P. Mackie
Keyword(s):  

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