Results 61 to 70 of about 121,287 (309)
From mice to humans—divergent strategies for intestinal homeostasis and regeneration
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa +2 more
wiley +1 more source
An air-stable and structurally tunable chiral (t)Bu-quinolineoxazoline/Pd(II) catalyst system has been developed for the enantioselective oxidative cascade cyclization of a variety of disubstituted olefinic substrates, with the apparent advantages of ...
Yang, D +7 more
core +1 more source
Synthesis of vinyldihydropyran by cooperative catalysis [PDF]
5-Unsaturated aldehydes with a suitably positioned allylic halide, or phosphate, leaving group undergo doubly-catalyzed cyclization to give dihydropyran derivatives.
Vulović Bojan +3 more
doaj +1 more source
Design and analysis strategies for robust microbiome ageing research
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik +5 more
wiley +1 more source
Cyclization of Polyenes. III Cyclization of Squalene-oxides
For the purpose of finding the optimum conditions of biogenetic-type synthesis of onocerin from squalene 2, 3; 22, 23-dioxide (IV), acid-catalyzed cyclization (BF3-etherate in water-saturated benzene) of squalene-2, 3-oxide (I) was investigated to afford the compounds, III, V, VI, VII, VIII and IX. The gross structure of these compounds was established
KITAHARA, YOSHIO +2 more
openaire +2 more sources
Investigating transcription factor dynamics in health and disease using FRAP
FRAP analysis of GFP‐tagged transcription factors reveals how molecular mobility and target engagement change in response to drug treatment. By combining live‐cell imaging, quantitative model fitting, and statistical analysis, this approach uncovers transcription factor dynamics linked to disease mechanisms, providing a powerful framework for ...
Kannan Govindaraj +3 more
wiley +1 more source
Iron-Promoted Cyclization/Halogenation of Alkynyl Diethyl Acetals
FeCl(3)(-) and FeBr(3)-promoted cyclization/halogenation of alkynyl diethyl acetals has been efficiently realized, selectively affording (E)-2(1-halobenzylidene or alkylidene)-substituted five-membered carbo- and heterocycles which were then efficiently ...
Xu, Tongyu +3 more
core +1 more source
Structure‐forward targeting of claudins with synthetic binders
Claudins form the paracellular barriers between epithelial and endothelial tissues at tight junctions and are targets for molecular binders with the goal of modulating barrier permeability. Claudin‐binding molecules are relevant in drug delivery or in altering claudin interactions with disease‐causing proteins.
Alex J. Vecchio
wiley +1 more source
Copper-Catalyzed Bromo-cyanomethylative Cyclization of Enynes
A copper-catalyzed bromo-cyanomethylative cyclization of 1,6-enynes is demonstrated. The treatment of 2-bromoacetonitrile with CuI enables the alkyl radical generation and triggers the radical addition/cyclization/bromination sequence, giving various ...
Chaoguo Yan +17 more
core +1 more source
A new series of 3-substituted 4-methylene-quinazolinthiones and 4-methylene-quinazolinones were synthesized in moderate to excellent yield through a simple reaction of 2-aminoacetophenones with isocyanates or isothiocyanates.
Huihui Yan +5 more
doaj +1 more source

