Herein, we report the invention of a novel expeditious concept for oligosaccharide synthesis. Unlike the classic orthogonal strategy based on leaving groups, the reverse approach is based on orthogonal protecting groups, herein p-methoxybenzyl and 4-pentenoyl, which allows for efficient oligosaccharide assembly in the reverse direction.
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http://dx.doi.org/10.1039/c1cc13409d | DOI Listing |
Curr Med Chem
January 2025
Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, UMR 8232, 4 Place Jussieu, 75005-Paris, France.
The understanding of glycans, the third life chain, is widely desired. Naturally, the glycoconjugates are found in heterogeneous forms due to the enzyme competition in the same process. As a result, the synthesis of homogeneous glycans has become one of the trending research topics.
View Article and Find Full Text PDFJ Mater Chem B
January 2025
Liaoning & Shenyang Key Laboratory of Functional Dye and Pigment, Shenyang University of Chemical Technology, Shenyang, China.
A pair of aza-BODIPY isomers, 1,7-di--butyl-3,5-dinaphthyl (Nap-BDP) and 1,7-dinaphthyl-3,5-di--butyl (revNap-BDP), were prepared in this study. According to the single crystal X-ray analysis, Nap-BDP exhibited an orthogonal structure. Owing to the difference in orthogonality and -Bu rotation between Nap-BDP and revNap-BDP, their spectral performances, including maximum absorption and emission, full width at half maximum, fluorescence quantum yield, photostability, singlet oxygen generation and photothermal conversion efficiency, were obviously different.
View Article and Find Full Text PDFPharm Dev Technol
January 2025
Department of Pharmacy, Changchun University of Chinese Medicine, Changchun 130117, China.
The formation of inclusion complexes between Ginsenoside Rg3 and cyclodextrins represents a promising strategy to enhance the solubility of G-Rg3. Nevertheless, the molecular mechanisms underlying the interaction between G-Rg3 and cyclodextrins have yet to be fully elucidated. In this study, we employed a combination of molecular simulation and experimental methodologies to identify the most effective solubilizing carriers among G-Rg3, β-cyclodextrin (β-CD), 2-hydroxypropyl-β-cyclodextrin (HP-β-CD), and 2,6-dimethyl-β-cyclodextrin (DM-β-CD).
View Article and Find Full Text PDFFront Aging Neurosci
December 2024
Department of Epidemiology and Health Statistics, School of Public Health, Qingdao University, Qingdao, Shandong, China.
Introduction: Previous research has suggested a link between the onset of Alzheimer's disease (AD) and metabolic disorder; however, the findings have been inconsistent. To date, the majority of metabolomics studies have focused on AD, resulting in a relative paucity of research on early-stage conditions such as mild cognitive impairment (MCI) underexplored. In this study, we employed a comprehensive platform for the early screening of individuals with MCI using high-throughput targeted metabolomics.
View Article and Find Full Text PDFJACS Au
December 2024
Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3060, United States.
Red-light absorbing photoredox catalysts offer potential advantages for large-scale reactions, expanding the range of usable substrates and facilitating bio-orthogonal applications. While many red-light absorbing/emitting fluorophores have been developed recently, functional red-light absorbing photoredox catalysts are scarce. Many photoredox catalysts rely on long-lived triplet excited states (triplets), which can efficiently engage in single electron transfer (SET) reactions with substrates.
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