No matter through asymmetric reduction of ketones or kinetic resolution of secondary alcohols, enantioselective synthesis of the corresponding secondary alcohols is challenging when the two groups attached to the prochiral or chiral centers are spatially or electronically similar. For examples, dialkyl (sp vs. sp), diaryl (sp vs. sp), and aryl-alkenyl (sp vs. sp) alcohols are difficult to produce with high enantioselectivities. By exploiting our recently developed Ru-catalysts of minimal stereogenicity, we reported herein a highly efficient kinetic resolution of aryl-alkenyl alcohols through hydrogen transfer. This method enabled such versatile chiral building blocks for organic synthesis as allylic alcohols, to be readily accessed with excellent enantiomeric excesses at practically useful conversions.
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http://dx.doi.org/10.3390/molecules26247475 | DOI Listing |
FEBS J
January 2025
Department of Biosciences and Bioengineering, IIT Bombay, Mumbai, India.
Cellulases are an ensemble of enzymes that hydrolyze cellulose chains into fermentable glucose and hence are widely used in bioethanol production. The last enzyme of the cellulose degradation pathway, β-glucosidase, is inhibited by its product, glucose. The product inhibition by glucose hinders cellulose hydrolysis limiting the saccharification during bioethanol production.
View Article and Find Full Text PDFJ Chromatogr A
December 2024
Department of Chemistry, Gustavus Adolphus College, Saint Peter, MN 56082, United States. Electronic address:
Determination of quality attributes of antisense oligonucleotides (ASOs) such as purity, potency, and sequence is challenging due to their relatively large size, polyanionic nature, and large number of synthetic modifications. Chromatography technologies are evolving rapidly to meet these challenges, and one area of particularly rapid change at this time is the use of hydrophilic interaction liquid chromatography (HILIC) for oligonucleotide (ON) separations. Relatively little has been published on the factors that dictate the kinetics of these separations.
View Article and Find Full Text PDFCell Rep
January 2025
Molecular Immunology, Justus-Liebig-University Giessen, 35392 Giessen, Germany. Electronic address:
Control of cell proliferation is critical for the lymphocyte life cycle. However, little is known about how stage-specific alterations in cell cycle behavior drive proliferation dynamics during T cell development. Here, we employed in vivo dual-nucleoside pulse labeling combined with the determination of DNA replication over time as well as fluorescent ubiquitination-based cell cycle indicator mice to establish a quantitative high-resolution map of cell cycle kinetics of thymocytes.
View Article and Find Full Text PDFJ Hepatol
January 2025
Centre for Regenerative Medicine, Institute for Regeneration and Repair, University of Edinburgh, Edinburgh, EH16 4UU, United Kingdom. Electronic address:
Background & Aims: Hepatocyte transplantation has shown promise for genetic diseases of the hepatocytes but to date has shown limited efficacy for non-genetic forms of severe liver injury. Limited cell engraftment and poor function of donor hepatocytes in recipient livers impacts the clinical utility of hepatocyte cell therapy. The mechanisms underpinning this are poorly understood.
View Article and Find Full Text PDFACS Sens
January 2025
State Key Laboratory of Heavy Oil Processing, College of New Energy and Materials, China University of Petroleum (Beijing), Beijing 102249, China.
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