Results 131 to 140 of about 1,473,629 (228)

Alkoxyallenes in Modern Synthesis: Reactivity, Catalysis, and Complexity Generation

Advanced Synthesis &Catalysis, Volume 368, Issue 17, 1 September 2026.
The last decade has witnessed a remarkable transformation in alkoxyallene chemistry. Although historically employed as synthetic equivalents of acrolein or as versatile 3C synthons, alkoxyallenes are now increasingly recognized as highly adaptable platforms for synthetic design.
A. Lanfranco, M. Rusconi, J. Saglietto, P. Renzi, A. Deagostino, E. Azzi   +5 more
wiley   +1 more source

Emergence of OXA-48-producing Enterobacteriaceae in Switzerland

International Journal of Antimicrobial Agents, 2012
Potron A, Schrenzel J, Poirel L, Renzi G, Cherkaoui A, Nordmann P.   +5 more
openaire   +2 more sources

Cobalt/Photoredox Catalyzed Desymmetrization of Oxo and Azabicycles via Asymmetric Reductive Coupling With Alkynes

Advanced Science, Volume 13, Issue 52, 18 September 2026.
A one‐step, asymmetric reductive coupling of alkynes and oxa‐ and aza‐bicyclic olefins using a cobalt/photoredox catalytic system through desymmetrization. ABSTRACT Bicyclo[2.2.1]heptane frameworks represent a privileged structural motif prevalent in numerous natural products and bioactive molecules.
Subhankar Pradhan, Arko Saha, Bholanath Maity, Sayan Dutta, Luigi Cavallo, Basker Sundararaju   +5 more
wiley   +1 more source

Bio‐Based Polyurethanes for Sustainable and Multifunctional Applications

Advanced Science, Volume 13, Issue 50, 7 September 2026.
Bio‐based polyurethanes prepared from vegetable oils, lignin, and polysaccharides have attracted increasing interest as alternatives to fossil‐derived polyurethanes. This review summarizes recent progress in their chemistry, structural engineering, and advanced applications, highlighting the roles of feedstocks, chain‐segment design, dynamic covalent ...
Xin Li, Henghui Deng, Shiwei Yu, Jiawei Huang, Zehong Chen, Dawei Zhao, Chaoqun Zhang   +6 more
wiley   +1 more source

carbapenems resistance mediated by OXA-48-like carbapenemases

, 2013
Les carbapénèmes constituent le traitement de dernier recours des infections associées à des germes multirésistants producteurs de -lactamases à spectre étendu.
Potron, Anaïs
core  

Overview of Photochemical Reactions for the Synthesis of Aza and Oxa‐Spirocyclic Compounds Under Visible Light Irradiation

Chemistry &Biodiversity, Volume 23, Issue 9, September 2026.
This review presents the visible‐light‐mediated photochemical reaction for the synthesis of aza, oxa, and aza–oxa spirocyclic compounds via photoinduced electron transfer (PET), hydrogen atom transfer (HAT), single‐electron transfer (SET), or energy transfer (EnT) pathways.
Annu Bhardwaj, Shivangi Jaiswal, Khushboo Bhardwaj, Swapnil Sharma, Jaya Dwivedi   +4 more
wiley   +1 more source

Hydrogen-Bonding Changes Cause Differences in Imipenem Breakdown Activity in OXA-48 Variants. [PDF]

J Chem Inf Model
Wang D, Mulholland AJ, Spencer J, van der Kamp MW.   +3 more
europepmc   +2 more sources

Endophytic Fungi Natural Factories of Novel Bioactive Compounds

Chemistry &Biodiversity, Volume 23, Issue 9, September 2026.
This review provides a systematic analysis of 242 natural products isolated from 42 genera of endophytic fungi, highlighting their remarkable structural diversity and broad spectrum of biological activities . ABSTRACT Endophytic fungi represent a prolific and chemically diverse source of novel specialized metabolites with significant pharmacological ...
Dilmurod Murodullayev, Jakhongir Movlanov, Liu Wei, Wei Liu, Maksud Isokov, Santosh Kumar Bose, Fazliddin Kobilov, Zamira Djumayeva, Buston Islamov, Jamila Sherkulova, Zafar Matyakubov, Muniskhon Meylieva, Munisa Ergasheva, Diyor Abduraxmanov, Guozheng Huang, Hongchen Jiang, Kakhramon Davranov, Guohui Pan, Nigora Rustamova   +18 more
wiley   +1 more source

Stereoselective and Diastereospecific Aminosilylation and Hydrosilylation of Heterobicyclic Alkenes by Copper Catalysis Under Mild Conditions

European Journal of Organic Chemistry, Volume 29, Issue 33, 1 September 2026.
An efficient and straightforward methodology for the stereoselective and diastereospecific aminosilylation and hydrosilylation of heterobicyclic norbornene derivatives is introduced. The mild conditions enable the functionalization of norbornene substrates with broad functional‐group tolerance.
Daniel Kamzol, Wende Chen, Aleksander Hoffman, René Wilhelm   +3 more
wiley   +1 more source

Cinnamaldehyde From Cinnamon as a Food‐Derived Bioactive: Phytochemistry, Anticancer Mechanisms, Bioavailability, Nanoformulation and Safety

Food Frontiers, Volume 7, Issue 5, September 2026.
Cinnamaldehyde derived from Cinnamomum species exerts multitarget anticancer effects by promoting oxidative stress, mitochondrial dysfunction, apoptosis, cell‐cycle arrest, autophagy, and epigenetic changes, and by suppressing mitogen‐activated protein kinase (MAPK), phosphoinositide 3‐kinase/protein kinase B/mechanistic target of rapamycin (PI3K/Akt ...
Gervason Moriasi, Sally Kamau, Gulnaz Seitimova, Shynar Zhumagaliyeva, Javad Sharifi‐Rad, William N. Setzer, Daniela Calina   +6 more
wiley   +1 more source