Results 201 to 210 of about 408,933 (280)

Empowering learning in crystallography: launch of the <i>Education and outreach</i> section in <i>Acta Crystallographica</i> Section E. [PDF]

Acta Crystallogr E Crystallogr Commun
Zheng SL, Parkin S.
europepmc   +1 more source

Synthesis and Glycosidase Inhibition Studies of Novel Exoglycals Targeting GH3 Family Enzymes: Insights from Comparative Analysis with Macrolide Antibiotics

Chemistry – A European Journal, EarlyView.
A series of structurally diverse exoglycals was synthesized using a modified Julia‐olefination approach from sugar‐derived precursors. These glycosidase transition‐state mimics were further diversified via CuAAC chemistry to yield triazole‐conjugated analogues.
Elisa Ospanow, Oscar L. Alferez, David L. Jakeman   +2 more
wiley   +1 more source

Graphical Fourier-coefficient analysis as a paper-based method for teaching structure factors. [PDF]

Acta Crystallogr E Crystallogr Commun
Weirich TE.
europepmc   +1 more source

Rh‐Catalyzed [2 + 2 + 2] Cycloaddition of Linked Bis(Diynes) Ar‐C≡C‐C≡C‐(CH2)3‐C≡C‐C≡C‐Ar With Quinones: Synthesis and Photophysical Properties of Bis(Arylethynyl)‐Naphthoquinones and Anthraquinones

Chemistry – A European Journal, EarlyView.
We report the synthesis bis(arylethynyl)naphtho‐ and anthraquinones via Rh(I)‐catalyzed [2 + 2 + 2] cycloaddition reactions. The substrate scope of both quinones and linked bis‐diynes was explored. Microwave irradiation remarkably enhanced yields.
Luana A. Machado, Jianhua Han, Fábio G. Delolo, Joyce C. Oliveira, Breno U. Abreu, Hállen D. R. Calado, Joannes Krebs, Leibo Tan, Qing Ye, Tobias Groß, Christoph Lambert, Camille Latouche, Abdou Boucekkine, Jean‐François Halet, Holger Braunschweig, Todd B. Marder, Eufrânio N. da Silva Júnior   +16 more
wiley   +1 more source

Regio‐ and Diastereoselective C–C Silylation of Cyclopropyl Acetates Harnessing Fluorinated Poly(pyridyl)Borate Rhodium Catalysts

Chemistry – A European Journal, EarlyView.
Fluorinated poly(pyridyl)borates have been utilized to stabilize rhodium‐diene complexes and as supporting ligands in rhodium‐catalyzed redox‐neutral C–C silylation of cyclopropyl acetates, producing silicon‐containing heterocyclic products, dioxasilolanes.
Vo Quang Huy Phan, Suman Das Adhikary, Junha Jeon, H. V. Rasika Dias   +3 more
wiley   +1 more source

Recent Advances in Chemical Probing Strategies for RNA Structure Determination in Vivo

Chemistry – A European Journal, EarlyView.
This Review illustrates how structural probes combined with advanced sequencing technologies are revolutionizing our ability to map RNA structures and interactions within living cells. It highlights the development of innovative strategies tailored to probe RNA structures in particular biological contexts.
Maryana Yarshova, Jieyu Zhao, Chun Kit Kwok   +2 more
wiley   +1 more source

Mini‐Hairpin DNA: Extraordinarily Stable Structure and Its Applications

Chemistry – A European Journal, EarlyView.
Mini‐hairpin DNA fragments containing GCGAAGC and GCGAAAGC form exceptionally stable hairpin‐like structures, with only two G−C pairs and one sheared G−A pair, remaining undenatured in 7 M urea and resisting nuclease digestion. These mini‐hairpin sequences frequently appear in replication and transcription origins, influence DNA sequencing fidelity ...
Michiko Kimoto, Ichiro Hirao
wiley   +1 more source

Identification of Natural Isonitriles Through Ligation to an Azomethine Imine Probe

Chemistry – A European Journal, EarlyView.
The azomethine imine (AMI)–isonitrile (NC) ligation allowed for the chemoselective detection of natural isonitriles in bacteria and fungi. The reactivity‐based screening establishes a new stereogenic center, thereby allowing for facile distinction between chiral and achiral isonitriles. The work also unraveled a unique reactivity of isonitriles bearing
Maurice P. Biedermann, Alexander Brachmann, Shurui Mai, Athanasios Markos, Markus Künzler, Jörn Piel, Helma Wennemers   +6 more
wiley   +1 more source

Structural and Biological Insights Into Copper(I) Phosphane Complexes With Boron‐Phenylated Poly(3‐(CF3)Pyrazolyl)‐ and Poly(6‐(CF3)‐2‐pyridyl)‐Borates

Chemistry – A European Journal, EarlyView.
This study reports six new copper(I) complexes with unusual coordination and strong anticancer activity against a panel of human cancer cell lines derived from different solid tumors. The most active compounds outperform cisplatin, even in resistant cells, by inhibiting protein disulfide isomerase and inducing redox stress that triggers non‐apoptotic ...
Vo Quang Huy Phan, Jo’ Del Gobbo, Mukundam Vanga, Deepika V. Karade, Cristina Marzano, Valentina Gandin, Laura Rigon, Carlo Santini, Maura Pellei, H. V. Rasika Dias   +9 more
wiley   +1 more source