Results 41 to 50 of about 3,397 (210)
Angewandte Chemie, EarlyView.Nature programs distinct secondary structures and functions through subtle stereochemical differences, as exemplified by amylose and cellulose. Translating this principle into synthetic ladder polymers, stereochemical sequence control gives rise to diastereomeric coil‐ and ribbon‐type helices with complementary chiral recognition, demonstrating ...
Tomoyuki Ikai +4 more
wiley +2 more sources
Unravelling dispersion forces in liquid-phase enantioseparation. Part I: Impact of ferrocenyl versus phenyl groups [PDF]
, 2023 Background: Highly ordered chiral secondary structures as well as multiple (tunable) recognition sites are the keys to success of polysaccharide carbamate-based chiral selectors in enantioseparation science. Hydrogen bonds (HBs), dipole-dipole, and &
Mireia Pérez-Baeza +19 more
core +1 more source
Separation of propranolol enantiomers using chiral HPLC [PDF]
Kragujevac Journal of Science, 2023 Enantiomers of pharmaceuticals may exhibit different effects because the organism serves as a chiral selector. Enantiomers can now be identified and separated using analytical techniques such as gas chromatography and high-performance liquid ...
Turković Nemanja M. +3 more
doaj
Molecules, 2012 Neutral and acidic monosaccharide components in <em>Ganoderma lucidum</em> polysaccharide are readily labeled with 2,3-naphthalenediamine, and the resulting saccharide-naphthimidazole (NAIM) derivatives are quantified by capillary ...
Jim-Min Fang +6 more
doaj +1 more source
, 2022 Porous molecular crystal materials offer promising applications for enantioselective separation and asymmetric catalysis, while regulating the chiral channel environment remains challenging yet.
Rong Zhang (44942) +7 more
core +1 more source
, 2004 The preparation of pure individual enantiomers represents a topical problem from the standpoint of efficacy and safety of drugs. This paper continues in the preceeding review of the blockers of beta-adrenergic receptors as a group of chiral drugs, which ...
Hutt, A J, Cizmarikova, R, Valentova, J
core +3 more sources
An Evaluation of Immobilized Poly-(S)-N-(1-phenylethyl)acrylamide Chiral Stationary Phases
Separations, 2022 In this study, brush type and polymer type stationary phases were prepared based on (S)-N-(1-phenylethyl) acrylamide, and the polymeric stationary phase demonstrated superior chiral recognition ability.
Guangying Lu +4 more
doaj +1 more source
Enantioselective Determination of Upadacitinib in Pharmaceutical Formulations Using Reversed‐Phase Chiral Liquid Chromatography [PDF]
J Sep SciA reversed‐phase chiral HPLC method was developed for the enantioselective separation and quantification of upadacitinib using a Box‐Behnken design. The validated method was successfully applied to the quantification of upadacitinib in a commercial tablet formulation, and its environmental impact and practicality were evaluated using various assessment
Atila Karaca S, Aliyeva S, Yeniceli D.
europepmc +2 more sources
Stereoselective Processes Based on σ-Hole Interactions
Molecules, 2022 The σ-hole interaction represents a noncovalent interaction between atoms with σ-hole(s) on their surface (such as halogens and chalcogens) and negative sites.
Paola Peluso, Victor Mamane
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Molecules, 2021 This work reviews the literature of chiral capillary electrokinetic chromatography from January 2016 to March 2021. This is done to explore the state-of-the-art approach and recent developments carried out in this field.
Sami El Deeb +4 more
doaj +1 more source