Results 131 to 140 of about 48,679 (293)

Chiral Chromenes: Synthesis, Separation of Enantiomers and Barriers to Racemization

open access: yes, 1993
2ff-Chromenes 3 and 4 have been synthesized by reduction of the appropriate lactone with diisobutylaluminium hydride and subsequent O-alkyla- tion of the resulting lactols.
Mannschreck, Albrecht   +14 more
core   +1 more source

Pharmacokinetic Differences Between Lansoprazole Enantiomers in Rats

open access: yes, 1998
Because limited information is available about potential differences between the pharmacokinetics and pharmacodynamics of the enantiomers of lansoprazole, the enantioselective pharmacokinetics of the compound have been investigated in rats.
Kazuto Yasuda   +3 more
core   +1 more source

The separation of specific enantiomers of anticancer reagent cytarabine using HPLC.

open access: yes
During the research and development stage of any drug candidate, there is a growing need to investigate the properties of existing enantiomers, if the drug possesses chirality.
Kamble, Shweta Ashok
core  

Exploring the Population Pharmacokinetic and Pharmacogenetics Characteristics of Flurbiprofen Isomers in Selective Joint Replacement Patients with Postoperative Pain

open access: yesDrug Design, Development and Therapy
Han Yao,1,* Xingxian Luo,2,* Jinjie Yuan,3 Hong Zhang,1 Haiyan An,1 Yi Feng1 1Department of Anesthesiology, Peking University People’s Hospital, Beijing, People’s Republic of China; 2Department of Pharmacy, Peking University People’s ...
Yao H   +5 more
doaj  

Chirality in Modern Antidepressants: A Comprehensive Review of Stereochemical Impacts on Pharmacology and Therapeutics

open access: yesDrugs and Drug Candidates
The review explores the critical role of chirality in the pharmacology of antidepressant drugs, focusing on how the stereochemistry of these compounds influences their biological activity and therapeutic outcomes.
Gabriel Hancu   +2 more
doaj   +1 more source

Application of Natural and Modified Biomacromolecules in Miniaturised Separative Analytical Techniques

open access: yes
In pharmaceutical R & D, drug stereochemistry, and consequently the rotation of enantiomers, is very important. Because they act as chiral selectors in vivo, biomacromolecules have been extensively used as chiral selectors for the liquid chromatographic (
Salmon, Andrew B
core  

A Chiral Saddle‐Shaped Nanographene With Two Heptagon‐Embedded [4]Helicenes

open access: yesAngewandte Chemie International Edition, EarlyView.
We present a novel synthetic strategy toward a chiral saddle‐shaped nanographene (cSNG) via a two‐step oxidation of a prochiral anthracene precursor. The Scholl‐type oxidation first yields a key intermediate with sp3‐defect heptagons, and subsequent oxidative dehydrogenation affords fully conjugated cSNG.
Felix Trautner   +11 more
wiley   +1 more source

Affinity of Rimantadine Enantiomers against Influenza A/M2 Protein Revisited

open access: yes, 2017
Recent findings from solid state NMR (ssNMR) studies suggested that the (R)-enantiomer of rimantadine binds to the full M2 protein with higher affinity than the (S)-enantiomer.
Jun Wang (5906)   +9 more
core   +1 more source

11-Hydroxyeicosatetraenoics induces cellular hypertrophy in an enantioselective manner

open access: yesFrontiers in Pharmacology
BackgroundR/S enantiomers of 11-hydroxyeicosatertraenoic acid (11-HETE) are formed from arachidonic acid by enzymatic and non-enzymatic pathways. 11-HETE is predominately formed by the cytochrome P450 1B1 (CYP1B1).
Sara A. Helal   +3 more
doaj   +1 more source

Plasma-Protein Binding of the Enantiomers of Hydroxychloroquine and Metabolites

open access: yes, 1993
The in vitro binding of the enantiomers of hydroxychloroquine and its three major metabolites in pooled plasma obtained from four healthy volunteers and the binding of the enantiomers of hydroxychloroquine to purified plasma proteins has been ...
Tett, SE, McLachlan, AJ, Cutler, DJ
core   +1 more source

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