Results 151 to 160 of about 3,124,995 (289)

Investigating operational stability and causes of cofactor release in fold type I amine transaminase

Protein Science, Volume 35, Issue 2, February 2026.
Abstract Amine transaminases (ATAs) are pyridoxal phosphate (PLP) dependent biocatalysts frequently employed in chiral amine synthesis. Yields of ATA‐catalyzed reactions often suffer from low enzyme operational stability due to weak interactions between the ATA and the aminated cofactor pyridoxamine phosphate (PMP), which can leak from the active site ...
Xuebin Feng, William Chau, Emma R. Master   +2 more
wiley   +1 more source

On‐Resin Pictet–Spengler Cyclization for 1,2,3,4‐Tetrahydro‐β‐carboline‐3‐carboxylate (Tcc) Peptide Synthesis With Acid‐Labile Functional Tolerance

Journal of Peptide Science, Volume 32, Issue 2, February 2026.
The constrained tryptophan (Trp) analog 1,2,3,4‐tetrahydro‐β‐carboline‐3‐carboxylic acid (Tcc) is used to restrict peptide conformation in structure–activity relationship studies. Although Pictet–Spengler cyclization of Trp and aldehydes with mineral acid gives Tcc analogs, such harsh conditions do not tolerate acid‐labile functionality.
Omer S. L. N'dri, Charity D. Yongo‐Luwawa, Xiaozheng Wei, Kajumee Bora Bhowal, Chitra P. Sadanandhan, Darince Truong, Ida Boccino, Will Maclean, Lylia Dif‐Yaiche, Zoé Villeneuve, William D. Lubell   +10 more
wiley   +1 more source

Ab Initio Molecular Dynamics Study of Quadrupolar Spin Relaxation in an Ionic Liquid

Journal of Computational Chemistry, Volume 47, Issue 3, 30 January 2026.
This study presents a methodology for describing the relaxation of nuclear spins (with I > 1/2), applicable to ionic liquids of a general nature. Based on ab initio molecular dynamics, we demonstrate the importance of explicit solvation in calculating the relaxation times of the quadrupolar mechanism.
Luciano N. Vidal, Lucas C. Ducati, Jochen Autschbach   +2 more
wiley   +1 more source

Tackling the Reactivity of Propadiene: Palladium Metallaphotoredox Dual Catalyzed Multi‐Component Allylation and Dienylation of Styrenes

Angewandte Chemie, Volume 138, Issue 4, 22 January 2026.
We presented herein that propadiene can chemodivergently form either an allylic moiety or a dienylic moiety under Pd catalysis. Embedding this reactivity pattern into photocatalysis with DHP as the initial radical source and styrene derivatives as the initial acceptor leads to multi‐component allylation and dienylation.
Yi‐Fei Yang, Felix Bauer, Bernhard Breit   +2 more
wiley   +2 more sources

18F‐Radiopharmaceutical Diversification Enabled by Deaminative Cross‐Electrophile Couplings

Angewandte Chemie, Volume 138, Issue 4, 22 January 2026.
A general Ni‐mediated (C)sp2–(C)sp3 cross‐coupling expedites access to 18F‐radiopharmaceuticals, essential for positron emission tomography imaging and drug discovery. This late‐stage diversification approach was implemented across three user‐friendly automated protocols affording 18F‐radiotracers in sufficient quantities for imaging.
Isabella F. Ogilvy, Joseph Ford, Sebastiano Ortalli, Evelien Renders, Thomas R. Hayes, Shuanglong Liu, Inne Mortiers, Anastasia Nikolopoulou, Alexandre M. Sorlin, Andrés A. Trabanco, Matthew Tredwell, Peter J. J. A. Buijnsters, Rhys Salter, Véronique Gouverneur   +13 more
wiley   +2 more sources

Symmetric Vs Asymmetric Imide Anion Decomposition Pathways And Their Influence On Solid Electrolyte Interphase Stability For Si Anodes

Angewandte Chemie, Volume 138, Issue 4, 22 January 2026.
Symmetric bis(flourosulfonyl)imide anions in imidazolium‐based ionic liquids direct the formation of a conformal SEI on 3D a‐Si architecture, featuring an ionorganic‐rich (LiF/LiOH) inner and Li2SO4/polymeric outer layer. This anion‐derived, mechanically robust SEI suppresses pulverization and delivers a high reversible capacity of 2489 mAh g−1 at 1C ...
Abinaya Sankaran, Fathima Laffir, Giovanna Maresca, Nilotpal Kapuria, Marc Van der Velden, Temilade E. Adegoke, S. Sananes Israel, Giovanni Battista Appetecchi, Hugh Geaney, Kevin M Ryan   +9 more
wiley   +2 more sources

Caylobolide B: Structure Revision, Total Synthesis, Biological Characterization, and Discovery of New Analogues

Angewandte Chemie, Volume 138, Issue 4, 22 January 2026.
Marine polyhydroxylated macrolides’ drug discovery potential is limited by structural complexity and scarce material supply, hindering structure assignment, synthesis, and biological studies. Here, we present an integrated workflow that combines chemogenomic profiling, ultra‐high‐resolution NMR‐guided structural revision and stereochemical assignment ...
Malcolm R. P. George, Lobna A. Elsadek, Max Deering, Larissa Costa de Almeida, Jasper L. Tyler, Adam Noble, Valerie J. Paul, Hendrik Luesch, Craig P. Butts, Varinder K. Aggarwal   +9 more
wiley   +2 more sources

Inhibition of acetylcholinesterase by three new pyridinium compounds and their effect on phosphonylation of the enzyme.

Journal of enzyme inhibition (Print), 1999
Mira ŠKrinjarić-ŠPoljar, Nicoletta Burger, Jasna Lovrić   +2 more
semanticscholar   +1 more source

Synthese, Struktur und thermisches Verhalten von Thiophosphorsäuretriamid (SP(NH2)3) [PDF]

, 1989
Schnick, Wolfgang
core   +1 more source

Pseudotetraivprolide aus Pseudomonas entomophila liefern Einblicke in die Biosynthese von Detoxin/Rimosamid‐ähnlichen Anti‐Antibiotika

Angewandte Chemie, Volume 138, Issue 4, 22 January 2026.
Pseudotetraivprolid ist ein neuer Akteur unter den Detoxin/Rimosamid‐ähnlichen Naturstoffen. Die Biosynthese erfordert FabD aus dem Primärstoffwechsel und einen PipDFG‐Komplex für die Acetylierung im letzten Schritt – wodurch schließlich die anti‐antibiotische Wirkung entsteht.
Edna Bode, Julia Büllesbach, Kevin Bauer, Yan‐Ni Shi, Simon Reiners, Ziheng Cui, Petra Happel, Yi‐Ming Shi, Kevin Hoffmann, Peter Grün, Bianca Pommerenke, Uli Kazmaier, Martin Grininger, Helge B. Bode   +13 more
wiley   +1 more source