Results 21 to 30 of about 42,748 (282)
Determination of 2-Pentanol Enantiomers via Chiral GC-MS and Its Sensory Evaluation in Baijiu
Foods, 2022 The enantiomeric contents of 2-pentanol of Baijiu were analyzed by liquid-liquid extraction (LLE) coupled with gas chromatography-mass spectrometry (GC-MS) using β-cyclodextrin as a chiral stationary phase.
Lisha Hu +4 more
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Biomolecules, 2022 Beta-hydroxybutyrate (βOHB), along with acetoacetate and acetone, are liver-produced ketone bodies that are increased after fasting or prolonged exercise as an alternative fuel source to glucose. βOHB, as the main circulating ketone body, is not only a G-
Matthew L. Klos +7 more
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Distribution and Quantification of 1,2-Propylene Glycol Enantiomers in Baijiu
Foods, 2021 Enantiomers of 1,2-Propylene glycol (1,2-PG) were investigated in 64 commercial Chinese Baijiu including soy sauce aroma-type Baijiu (SSB), strong aroma-type Baijiu (STB), and light aroma-type Baijiu (LTB), via chiral gas chromatography (β-cyclodextrin).
Hao Xu +4 more
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Determination of the vildagliptin intermediate enantiomer by chiralce-columns
Journal of Hebei University of Science and Technology, 2017 In order to establish a NP-HPLC method for the determination of enantiomer in vildagliptin intermediate, the determination is carried out on the column of ChiralpakAD-H(250 mm×4.6 mm, 5 μm), with the mobile phase of n-hexane, ethanol and methanol（volume ...
Weina LI, Jia HU, Mengyu ZHAI, Zibin GAO
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Lipase Assisted (S)-Ketoprofen Resolution from Commercially Available Racemic Mixture
Pharmaceuticals, 2021 Ketoprofen is a commercially available drug sold as a racemic mixture that belongs to the family of non-steroidal anti-inflammatory drugs known as profens.
Daniela Estrada-Valenzuela +5 more
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Dexibuprofen Therapeutic Advances: Prodrugs and Nanotechnological Formulations
Pharmaceutics, 2021 S-(+) enantiomer of ibuprofen (IBU) dexibuprofen (DXI) is known to be more potent than its R-(−) form and exhibits many advantages over the racemic mixture of IBU such as lower toxicity, greater clinical efficacy, and lesser variability in therapeutic ...
Anna Gliszczyńska +1 more
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Disproportionation of enantiomers by precipitation [PDF]
Journal of Molecular Evolution, 1974 The paper presents some experiments which were aimed at the demonstration of enrichment of enantiomer substances by precipitation from saturated racemic solutions. As a working hypothesis we searched for a possible very small “asymmetry effect” that might by observable during precipitation if the solubilities of enantiomer components were affected ...
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Nanomaterials, 2023 Barbituric acid derivative (TDPT) is an achiral molecule, and its adsorption on a surface results in two opposite enantiomerically oriented motifs, namely TDPT-Sp and Rp. Two types of building blocks can be formed; block I is enantiomer-pure and is built
Fabien Silly +3 more
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The Enantiomers of Trinorbornane and Derivatives Thereof [PDF]
Helvetica Chimica Acta, 2020 AbstractHerein, we report the synthesis of the enantiomers of trinorbornane, a tetracyclic saturated hydrocarbon with the chemical formula C11H16. The preparation of these rigid carbon scaffolds was enabled by the successful chiral separation of its tricyclic precursor, thus allowing the enantiomers to be synthesized through a reductive radical ...
Marcel Mayor +4 more
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Ketamine: A tale of two enantiomers [PDF]
Journal of Psychopharmacology, 2020 The discovery of the rapid antidepressant effects of the dissociative anaesthetic ketamine, an uncompetitive N-Methyl-D-Aspartate receptor antagonist, is arguably the most important breakthrough in depression research in the last 50 years. Ketamine remains an off-label treatment for treatment-resistant depression with factors that limit widespread use
Luke A Jelen +4 more
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