Results 71 to 80 of about 3,123,489 (311)

Sharpless Asymmetric Dihydroxylation: An Impressive Gadget for the Synthesis of Natural Products: A Review

open access: yesMolecules, 2023
Sharpless asymmetric dihydroxylation is an important reaction in the enantioselective synthesis of chiral vicinal diols that involves the treatment of alkene with osmium tetroxide along with optically active quinine ligand.
Aqsa Mushtaq   +8 more
doaj   +1 more source

Molecular characterization of covRS mutations in M1UK Streptococcus pyogenes

open access: yesFEBS Open Bio, EarlyView.
Group A Streptococcus (GAS) acquires covRS mutations driving a hypervirulent bacterial state, frequently associated with invasive disease‐like necrotizing fasciitis. We demonstrate that the newly emerged M1UK GAS lineage can also acquire these mutations.
Jarrad Pritchard   +12 more
wiley   +1 more source

Aggregation-Induced Synthesis (AIS): Asymmetric Synthesis via Chiral Aggregates

open access: yesResearch, 2022
A new chiral aggregate-based tool for asymmetric synthesis has been developed by taking advantage of chiral aggregates of GAP (Group-Assisted Purification) reagents, N-phosphonyl imines.
Hossein Rouh   +11 more
doaj   +1 more source

From energy provision to protein synthesis: Tunnelling nanotubes as mediators of intercellular metabolic cooperation in cancer

open access: yesFEBS Open Bio, EarlyView.
The cytoskeleton‐mediated transport of mitochondria via tunnelling nanotubes restores respiration, increases ATP production, rescues cells from apoptosis, activates the AKT/mTOR signalling pathway, promotes cell migration and invasiveness, contributes to cancer progression and treatment resistance.
Stanislava Martínková, Jan Trnka
wiley   +1 more source

Catalytic Asymmetric Synthesis of tert-Butanesulfinamide. Application to the Asymmetric Synthesis of Amines

open access: yes, 2016
Catalytic Asymmetric Synthesis of tert-Butanesulfinamide.
Guangcheng Liu (3001974)   +2 more
core   +1 more source

Asymmetric Total Synthesis of Arcutinidine and Arcutinine [PDF]

open access: yes, 2019
We have accomplished the asymmetric total synthesis of arcutinidine and arcutinine, two arcutine-type C20-diterpenoid alkaloids. A pentacyclic intermediate was rapidly assembled by using two Diels−Alder reactions.
Ang, Li   +5 more
core   +2 more sources

Tuning the properties of coumarin-based small molecule donors via strong acceptor substitution for advanced donor/PCBM organic solar cells

open access: yesScientific African
In this study, we designed and evaluated high-efficiency coumarin-based small-molecule donors for organic solar cells (OSCs) using density functional theory (DFT) calculations to address the challenge of improving charge transfer and photovoltaic ...
Walid Taouali   +2 more
doaj   +1 more source

Structural and biochemical insights into the thermostable esterase Ta0887 from Thermoplasma acidophilum

open access: yesFEBS Open Bio, EarlyView.
In this study, a novel esterase from the thermoacidophilic archaeon Thermoplasma acidophilum was biochemically and structurally characterized. Our results demonstrate that Ta0887 is a highly thermostable esterase that preferentially hydrolyzes p‐nitrophenyl hexanoate and possesses an α‐helical cap domain that likely contributes to its substrate ...
Alejandro Delgado‐Rey   +4 more
wiley   +1 more source

Chiral pyridyl phosphinite catalysts and the development of structure selectivity relationships in the asymmetric hydrogenation of trisubstituted alkenes [PDF]

open access: yes, 2010
The current trend in developing asymmetric catalysts is towards creating specialized molecules with tailored functions for increased selectivity in classes of substrates rather than general catalysts capable of broad application.
Woodmansee, David Harrison
core   +1 more source

Catalytic enantioselective intramolecular hydroamination of alkenes using chiral aprotic cyclic urea ligand on manganese (II)

open access: yesNature Communications
Asymmetric catalysis for enantioselective intramolecular hydroamination of alkenes is a critical method in the construction of enantioenriched nitrogen-containing rings, often prevalent in biologically active compounds and natural products.
Bin Cui   +6 more
doaj   +1 more source

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