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Recent Advances in Mass Spectrometry-Based Structural Elucidation Techniques

open access: yesMolecules, 2022
Mass spectrometry (MS) has become the central technique that is extensively used for the analysis of molecular structures of unknown compounds in the gas phase.
Xin Ma
doaj   +2 more sources

The Evolving Landscape of NMR Structural Elucidation [PDF]

open access: yesMolecules
Nuclear Magnetic Resonance (NMR) spectroscopy has long been a cornerstone in the structural elucidation of molecules, offering unique insights into atomic-level connectivity, conformation, and dynamics.
Josep Saurí
doaj   +2 more sources

A transformer based generative chemical language AI model for structural elucidation of organic compounds [PDF]

open access: yesJournal of Cheminformatics
For over half a century, computer-aided structural elucidation systems (CASE) for organic compounds have relied on complex expert systems with explicitly programmed algorithms. These systems are often computationally inefficient for complex compounds due
Xiaofeng Tan
doaj   +2 more sources

Structural Elucidation of Hybutimibe

open access: yesChinese Journal of Magnetic Resonance
The structure of hybutimibe was analyzed by ultraviolet absorption spectroscopy, infrared absorption spectroscopy, mass spectrometry, nuclear magnetic resonance (1H NMR, 13C NMR, DEPT, 1H-1H COSY, 1H-1H NOESY, 1H-13C HSQC and 1H-13C HMBC) spectroscopy ...
XU Xiaojie   +6 more
doaj   +2 more sources

Machine learning in computational NMR-aided structural elucidation

open access: yesFrontiers in Natural Products, 2023
Structure elucidation is a stage of paramount importance in the discovery of novel compounds because molecular structure determines their physical, chemical and biological properties. Computational prediction of spectroscopic data, mainly NMR, has become
Iván Cortés   +3 more
semanticscholar   +1 more source

(2R,4S,5S)-5-Methoxy-4-methyl-3-oxohept-6-en-2-yl benzoate

open access: yesIUCrData, 2021
The title compound, C16H20O4, was synthesized in the course of the total synthesis of fusaequisin A in order to verify and confirm the configurations of the stereogenic centers and to exclude the possibility of epimerization during the methylation ...
Ann-Christin Schmidt   +2 more
doaj   +1 more source

Structural Elucidation, Modification, and Structure-Activity Relationship of Polysaccharides in Chinese Herbs: A Review

open access: yesFrontiers in Nutrition, 2022
Chinese herbal polysaccharides (CHPs) are natural polymers composed of monosaccharides, which are widely found in Chinese herbs and work as one of the important active ingredients.
Bei Wang   +6 more
semanticscholar   +1 more source

How Low Can It Go? ATR-FTIR Characterization of Compounds Isolated from Ginger at the Nanogram Level

open access: yesEngineering Proceedings, 2023
This proof-of-concept study demonstrated the potential of attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy for the structural characterization of natural products when only very small quantities of the target compound are ...
Joel B. Johnson   +3 more
doaj   +1 more source

Structural Elucidation and Activities of Cordyceps militaris-Derived Polysaccharides: A Review

open access: yesFrontiers in Nutrition, 2022
Cordyceps militaris is a parasitic edible fungus and has been used as tonics for centuries. Polysaccharides are a major water-soluble component of C. militaris. Recently, C.
Miao Miao   +4 more
semanticscholar   +1 more source

Structural elucidation of substrate-bound aminoglycoside acetyltransferase (3)-IIIa.

open access: yesPLoS ONE, 2022
Canonical aminoglycosides are a large group of antibiotics, where the part of chemical diversity stems from the substitution of the neamine ring system on positions 5 and 6.
Michał Zieliński   +3 more
doaj   +3 more sources

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