scholarly journals Insight into the Structure Elucidation of Flavonoids ThroughUV-Visible Spectral Analysis of Quercetin Derivatives Using Shift Reagents

2017 ◽  
Vol 37 ◽  
pp. 55-64
Author(s):  
Gan Bahadur Bajracharya ◽  
Mohan Paudel ◽  
Rajendra KC
Keyword(s):  
Spectral Analysis ◽  
Structure Elucidation ◽  
Quercetin Derivatives ◽  
Shift Reagents ◽  
Insight Into

available with fulltext  

Facile Synthetic Protocols for the preparation of New Impurities in Pemetrexed Disodium Heptahydrate as an Anti-Cancer Drug

2021 ◽  
Vol 18 ◽  
Author(s):  
Rama Mohana Reddy Jaggavarapu ◽  
Venkatanarayana Muvvala ◽  
Ghojala Venkatareddy ◽  
Ravi Kumar Cheedarala
Keyword(s):  
Quality Control ◽  
Spectral Analysis ◽  
1H Nmr ◽  
Structure Elucidation ◽  
Research Work ◽  
Synthetic Methods ◽  
Cancer Drug ◽  
The Novel ◽  
Anti Cancer ◽  
Pemetrexed Disodium

: A facile synthetic protocols were employed to prepare process-related impurities associated with the synthesis of pemetrexed disodium heptahydrate, Alimta. The research work is described for the development of the novel synthetic methods and their structure elucidation of Pemetrexed glutamide, N-methyl pemetrexed, and N-methyl pemetrexed glutamide impurities. The listed impurities were deduced through spectral analysis such as 1H-NMR, 13CNMR, and HRMS. The target compounds can be used as the reference substances for the quality control.

Insight into the chemistry of cycloaddition between α-ketol oxylipin and epinephrine: isolation and structure elucidation of a new reaction product

2013 ◽  
Vol 54 (18) ◽  
pp. 2247-2250 ◽  
Author(s):  
Kenji Kai ◽  
Yukie Oba ◽  
Ryota Akaike ◽  
Ariaki Murata ◽  
Toshio Nishikawa ◽  
...  
Keyword(s):  
Structure Elucidation ◽  
Insight Into

scholarly journals Cross-Correlation and Cross-Spectral Analysis of the Hydrographs in the Northern Part of the Dinaric Karst of Croatia

Geosciences ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 86 ◽  
Author(s):  
Krešimir Pavlić ◽  
Jelena Parlov
Keyword(s):  
Spectral Analysis ◽  
Cross Correlation ◽  
Coherence Function ◽  
Karst Area ◽  
Karst Aquifers ◽  
Dinaric Karst ◽  
Input Signals ◽  
Runoff Regime ◽  
Groundwater Reserves ◽  
Insight Into

Correlation and cross-spectral analysis of hydrographs was performed on the karst area of the mountainous section of the Kupa River in two time periods. Since there are karst aquifers in this area that is a part of strategic groundwater reserves of potable water, such an analysis could give better insight into the behavior of these aquifers. The functions used to describe karst aquifers are the cross-correlation function, coherence function, gain function, and phase function. The outcomes of the analysis results were very similar in the two analyzed periods, suggesting that differences in input signals between these two periods do not affect the aquifer function as a system filter. The results of this research suggest that the aquifer and overburden layer characteristics have a much stronger influence than the change of input signal on the runoff regime in the considered period.

Insight into inhibition of the human amyloid beta protein precursor (APP: PDB ID 3UMI) using (E)-N-(pyridin-2-ylmethylene)arylamine (LR) models: structure elucidation of a family of ZnX2-LRcomplexes

2015 ◽  
Vol 44 (5) ◽  
pp. 2359-2369 ◽  
Author(s):  
Tushar S. Basu Baul ◽  
Sajal Kundu ◽  
Palwinder Singh ◽  
Shaveta Shaveta ◽  
M. Fátima C. Guedes da Silva
Keyword(s):  
Amyloid Beta ◽  
Structure Elucidation ◽  
Amyloid Beta Protein ◽  
X Ray Diffraction ◽  
Protein Precursor ◽  
X Ray ◽  
Amyloid Beta Protein Precursor ◽  
Insight Into

LRshows interactions with the human amyloid beta protein precursor (APP)viazinc atoms. Such interactions were confirmed from the X-ray diffraction studies.

Counterpoint and quotation in Ussachevsky's Wireless Fantasy

2007 ◽  
Vol 12 (2) ◽  
pp. 143-151 ◽  
Author(s):  
Richard Beaudoin
Keyword(s):  
Spectral Analysis ◽  
Real Time ◽  
Music Notation ◽  
Cultural Meaning ◽  
Analytical Methodology ◽  
Shortwave Radio ◽  
Source Materials ◽  
Insight Into

AbstractWireless Fantasy, Vladimir Ussachevsky's 4½-minute tribute to the birth of wireless radio, utilises a rich collection of sound materials, from antique spark generators and shortwave radio sounds to a recorded segment of Wagner's Parsifal. Wireless Fantasy is here examined not as much for the cultural meaning of its sources but for insight into Ussachevsky's dramatic counterpointing of those sources in real time. The analytical methodology focuses on pitch, rhythm, and timbre equally, using both standard music notation and spectral analysis to examine the contrapuntal elements in this classic electroacoustic composition. Special attention is paid to the coincidence of accent between the source materials that generates the work's climax and to the involvement of all the sources in articulating its final cadence. The larger issue of quotation within electroacoustic composition is discussed with regard to an abstract reference in the work's coda.

Azaphenothiazines – promising phenothiazine derivatives. An insight into nomenclature, synthesis, structure elucidation and biological properties

2017 ◽  
Vol 138 ◽  
pp. 774-806 ◽  
Author(s):  
Krystian Pluta ◽  
Małgorzata Jeleń ◽  
Beata Morak-Młodawska ◽  
Michał Zimecki ◽  
Jolanta Artym ◽  
...  
Keyword(s):  
Structure Elucidation ◽  
Biological Properties ◽  
Phenothiazine Derivatives ◽  
Insight Into
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