Truncated 3'-deoxy- 3', 3' difluororibofuranosyl pyrimidine nucleoside derivatives were synthesized from d-ribose via β-apioribo pyrimidine nucleoside intermediates 11a-c. The synthetic approach signifies that truncation at C3' position of apioribose ring of 13a-c by oxidative cleavage of diols with Pb(OAc) and followed by fluorination with DAST as key steps. Cytotoxic evaluation of synthesized truncated nucleoside derivatives 16a-c and 19a-c were tested against MCF7 and MDA-MB-231 breast cancer cell lines. However, only 19a was shown minimal growth suppression activity on MDA-MB-231 cancer cell lines.
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http://dx.doi.org/10.1016/j.carres.2020.108113 | DOI Listing |
Environ Sci Technol
January 2025
State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210023, P. R. China.
Liquid crystal monomers (LCMs) of different chemical structures were widely detected in various environmental matrices. However, their health risk evaluation is lacking. Herein, three representative LCMs were selected from 74 LCM candidates upon literature review and acute cytotoxicity evaluation, then were exposed to the three LCMs for 42 days at doses of 0.
View Article and Find Full Text PDFJ Med Chem
January 2025
State Key Laboratory of Antiviral Drugs, Pingyuan Laboratory, NMPA Key Laboratory for Research and Evaluation of Innovative Drug, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China.
A novel 2'-α-fluoro-2'-β--(fluoromethyl) purine nucleoside phosphoramidate prodrug has been designed and synthesized to treat SARS-CoV-2 infection. The SARS-CoV-2 central replication transcription complex (C-RTC, nsp12-nsp7-nsp8) catalyzed in vitro RNA synthesis was effectively inhibited by the corresponding bioactive nucleoside triphosphate (). The cryo-electron microscopy structure of the C-RTC: complex was also determined.
View Article and Find Full Text PDFChem Biodivers
December 2024
Department of Biochemistry, Government College Women University, Faisalabad, Pakistan.
The current study was conducted to characterize the vinegar extract of Nigella sativa and evaluate its biological activities using in vitro and in vivo studies. The N. sativa extract (NSE) was prepared by macerating seeds in a mixture of water and synthetic vinegar (1:10).
View Article and Find Full Text PDFVet Med Int
January 2025
Department of Science and Technology, Virology and Vaccine Research Program, Industrial Technology Development Institute, Bicutan, Taguig 1634, Philippines.
African swine fever (ASF), caused by African swine fever virus (ASFV), is a highly contagious disease with devastating effects on the global pig industry. This warrants the development of effective control strategies, such as vaccines. However, previously developed inactivated vaccines have proven ineffective, while live-attenuated vaccines carry inherent safety risks.
View Article and Find Full Text PDFToxicol Rep
June 2025
Sorbonne Université, Centre National de la Recherche Scientifique, Laboratoire de Chimie de la Matière Condensée de Paris, LCMCP, Paris F-75005, France.
Unlabelled: Fibroblasts are considered a key player in the wound healing process. Although this cellular family is constituted by several distinct subtypes, dermal fibroblasts are crucial thanks to their ability to secrete pro-regenerative growth factors, extracellular matrix (ECM) proteins and their immune and anti-inflammatory role. Sophorolipids (SL), sophorosides (SS) and glucolipids (G), mono-unsaturated (C18:1) or saturated (C18:0), glycolipids derived from microbial fermentation of wild type or engineered yeast , constitute a novel sustainable class of bio-based chemicals with interesting physicochemical characteristics, which allow them to form soft diverse structures from hydrogels to vesicles, micelles or complex coacervates with potential interest in skin regeneration applications.
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