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Stereocontrolled synthesis and nuclear magnetic resonance analysis of boranophosphate/phosphate chimeric oligonucleotides [PDF]

open access: yesRoyal Society Open Science
This report describes the stereoselective synthesis of boranophosphate/phosphate (PB/PO) chimeric oligodeoxynucleotides (ODNs) and the nuclear magnetic resonance (NMR) analysis of oligomers containing PB linkages.
Kiyoshi Kakuta   +4 more
doaj   +2 more sources

Unexpected Methyllanthionine Stereochemistry in the Morphogenetic Lanthipeptide SapT

open access: yesJournal of the American Chemical Society, 2022
Lanthipeptides are polycyclic peptides characterized by the presence of lanthionine (Lan) and/or methyllanthionine (MeLan). They are members of the ribosomally synthesized and post-translationally modified peptides (RiPPs).
Raymond Sarksian   +4 more
semanticscholar   +1 more source

A New E-Series Resolvin: RvE4 Stereochemistry and Function in Efferocytosis of Inflammation-Resolution

open access: yesFrontiers in Immunology, 2021
The resolution of the acute inflammatory response is governed by phagocytes actively clearing apoptotic cells and pathogens. Biosynthesis of the specialized pro-resolving mediators (SPMs) is pivotal in the resolution of inflammation via their roles in ...
Stephania Libreros   +6 more
semanticscholar   +1 more source

Stereochemistry-Controlled Mechanical Properties and Degradation in 3D-Printable Photosets.

open access: yesJournal of the American Chemical Society, 2021
Stereochemistry provides an appealing handle by which to control the properties of small molecules and polymers. While it is established that stereochemistry in linear polymers affects their bulk mechanical properties, the application of this concept to ...
Anissa L Khalfa, M. Becker, A. P. Dove
semanticscholar   +1 more source

Stereochemistry of N-Acyl-5H-dibenzo[b,d]azepin-7(6H)-ones

open access: yesMolecules, 2023
The stereochemical properties of N-acyl-5H-dibenzo[b,d]azepin-7(6H)-ones (2a–c), which inhibit potassium channels in T cells, were examined by freezing their conformational change due to 4-methyl substitution.
Arisa Chiba   +8 more
doaj   +1 more source

Synthesis of New C-3 Substituted Kynurenic Acid Derivatives

open access: yesMolecules, 2020
The application of kynurenic acid (KYNA) as an electron-rich aromatic system in the modified Mannich reaction has been examined. The extension possibility of the reaction was tested by using amines occurring in a number of bioactive products, such as ...
Bálint Lőrinczi   +3 more
doaj   +1 more source

Fast and Accurate Prediction of Refractive Index of Organic Liquids with Graph Machines

open access: yesMolecules, 2023
The refractive index (RI) of liquids is a key physical property of molecular compounds and materials. In addition to its ubiquitous role in physics, it is also exploited to impart specific optical properties (transparency, opacity, and gloss) to ...
François Duprat   +3 more
doaj   +1 more source

A global Ramachandran score identifies protein structures with unlikely stereochemistry

open access: yesbioRxiv, 2020
Ramachandran plots report the distribution of the (φ, Ψ) torsion angles of the protein backbone and are one of the best quality metrics of experimental structure models. Typically, validation software reports the number of residues belonging to “outlier”,
O. Sobolev   +6 more
semanticscholar   +1 more source

Synthesis and Conformational Analysis of Naphthoxazine-Fused Phenanthrene Derivatives

open access: yesMolecules, 2020
The synthesis of new phenanthr[9,10-e][1,3]oxazines was achieved by the direct coupling of 9-phenanthrol with cyclic imines in the modified aza-Friedel–Crafts reaction followed by the ring closure of the resulting bifunctional aminophenanthrols with ...
Khadija Belasri   +6 more
doaj   +1 more source

Chemistry, Cyclophosphamide, Cancer Chemotherapy, and Serendipity: Sixty Years On

open access: yesSubstantia, 2021
Cambridge Dictionary: serendipity | noun | the phenomenon of finding interesting or valuable things by chance. The year 2019 marked the 60th anniversary of the approval of cyclophosphamide (CP) as an anticancer by the U.S.
Gerald Zon
doaj   +1 more source

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