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Synthesis of naphthalene derivatives via nitrogen-to-carbon transmutation of isoquinolines.
Sci Adv
January 2025
Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710069, China.
Heteroarene skeletal editing is gaining popularity in synthetic chemistry. Transmuting single atoms generates molecules that have distinctly varied properties, thereby fostering potent molecular exchanges that can be extensively used to synthesize functional molecules. Herein, we present a convenient protocol for nitrogen-carbon single-atom transmutations in isoquinolines, which is inspired by the Wittig reaction and enables easy access to substituted naphthalene derivatives.
View Article and Find Full Text PDFeIF3 engages with 3'-UTR termini of highly translated mRNAs.
Elife
January 2025
Innovative Genomics Institute, University of California, Berkeley, Berkeley, United States.
Stem cell differentiation involves a global increase in protein synthesis to meet the demands of specialized cell types. However, the molecular mechanisms underlying this translational burst and the involvement of initiation factors remains largely unknown. Here, we investigate the role of eukaryotic initiation factor 3 (eIF3) in early differentiation of human pluripotent stem cell (hPSC)-derived neural progenitor cells (NPCs).
View Article and Find Full Text PDFBicyclic nucleoside analogues: synthesis of thiazolopyrimidine-based nucleosides a copper-catalysed tandem reaction of 5-iodocytidine with isothiocyanates.
Org Biomol Chem
January 2025
Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram 695019, India.
We have devised a copper-catalysed tandem annulation reaction to generate a new class of bicyclic nucleoside analogues (BCNAs), namely, amino-substituted thiazolopyrimidine ribonucleosides. The reaction between triacetyl-5-iodo-cytidine and an appropriate organic isothiocyanate in the presence of a Cu salt and ligand resulted in the formation of an amino-substituted thiazolopyrimidine moiety. This reaction was found to be compatible with a range of aliphatic and aromatic isothiocyanates, affording the corresponding products in moderate to good yields.
View Article and Find Full Text PDFPerturbation of peptidoglycan recycling by anti-folates and design of a dual-action inhibitor.
mBio
January 2025
Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario, Canada.
Unlabelled: Peptidoglycan (PG) is an important bacterial macromolecule that confers cell shape and structural integrity, and is a key antibiotic target. Its synthesis and turnover are carefully coordinated with other cellular processes and pathways. Despite established connections between the biosynthesis of PG and the outer membrane, or PG and DNA replication, links between PG and folate metabolism remain comparatively unexplored.
View Article and Find Full Text PDFExploring Divergent Role of Amine in Chemodivergent Synthesis of 4-alkyl/aryl-3H-1,2-Dithiole-3-thione and Ketothioamide.
Chemistry
January 2025
Central University of Gujarat, School of Chemical Sciences, Sector 30, 382030, Gandhinagar, INDIA.
The selective synthesis of 4-alkyl/aryl-3H-1,2-dithiole-3-thione in THF and water-dependent switchable product ketothioamide is demonstrated. The presented method describes explicitly the synthesis of the extremely rare positional isomer 4-alkyl/aryl-3H-1,2-dithiole-3-thione, a unique structure distinct from another positional isomer, 5-alkyl/aryl-3H-1,2-dithiole-3-thione. The unique umpolung of the nitromethyl group is exploited for solvent selective nucleophilic sulfur and amine addition.
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