98%
921
2 minutes
20
Sulfonyl fluoride (SF)-based activity probes have become important tools in chemical biology. Herein, exploiting the relative chemical stability of SF to carry out a number of unprecedented SF-sparing functional group manipulations, we report the chemoselective synthesis of a toolbox of highly functionalized aryl SF monomers that we used to quickly prepare SF chemical biology probes. In addition to SF, the monomers bear an embedded click handle (a terminal alkyne that can perform copper(I)-mediated azide-alkyne cycloaddition). The monomers can be used either as fragments to prepare clickable SF analogues of drugs (biologically active compounds) bearing an aryl ring or, alternatively, attached to drugs as minimalist clickable aryl SF substituents.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1002/cbic.201600427 | DOI Listing |
J Am Chem Soc
September 2025
Frontiers Science Center for New Organic Matter, State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences and Academy for Advanced Interdisciplinary Studies, Nankai University, Tianjin 300071, PR China.
Antigen-capturing nanomaterials hold great promise for cancer immunotherapy; however, the need for tumor localized administration and limited antigen-binding affinity remains the "Achilles heel" of this strategy. Herein, we present a tumor microenvironment (TME)-activatable nanoplatform, TDR848@FPB, designed for systemic administration and enhanced covalent capture of tumor-associated antigens (TAAs), enabling effective immunotherapy with minimal off-target effects and independent of localized tumor administration. This platform encapsulates a photosensitizer-conjugated, light-activated toll-like receptor (TLR) agonist, which induces immunogenic cell death and triggers a pro-inflammatory TME conducive to antigen capture upon light irradiation.
View Article and Find Full Text PDFNano Lett
September 2025
Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Aptamer Engineering Center of Hunan Province, Hunan University, Changsha 410082, China.
Interleukin-12 (IL-12) is a robust proinflammatory cytokine that activates immune cells, such as T cells and natural killer cells, to induce antitumor immunity. However, the clinical application of recombinant IL-12 has been limited by systemic immune-related adverse events (irAEs) and rapid degradation. To address these challenges, we employed mRNA technology to encode a tumor-activated IL-12 "lock" fusion protein that offers both therapeutic efficacy and systemic safety.
View Article and Find Full Text PDFEnviron Monit Assess
September 2025
Department of Zoology, Faculty of Biology, University of Sevilla, Av. Reina Mercedes 6, 41012, Seville, Spain.
Marine ecosystems, particularly estuaries, are increasingly threatened by anthropogenic pressures. The Odiel Estuary has suffered severe contamination from acid mine drainage and industrial activities. Since 1986, mitigation efforts have been implemented, yet their long-term ecological effectiveness remains under-evaluated.
View Article and Find Full Text PDFJ Am Chem Soc
September 2025
Center of Drug Discovery, State Key Laboratory of Natural Medicine, China Pharmaceutical University, Nanjing 211198, China.
The advancement of bioorthogonal cleavage platforms has emerged as a critical frontier in chemical biology, offering precise molecular liberation through physiologically compatible activation mechanisms. Despite its significant potential, ensuring efficacy typically requires rapid reaction kinetics, high-efficiency payload release, and stable reactants; however, relevant reports remain sparse. Herein, we developed a strain-promoted alkyne-nitrone cycloaddition (SPANC)-based click-release chemistry through installation of a carbamate-linked release moiety at the propargyl position of cyclooctyne, triggering a spontaneous elimination following click cycloaddition to achieve efficient payload liberation.
View Article and Find Full Text PDFJ Phys Chem Lett
September 2025
Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87106, United States.
Defects significantly influence charge transport in CHNHPbI (MAPbI) perovskite solar cells, particularly at interfaces. Using quantum dynamics simulation, we reveal a distinct interstitial iodine (I) defect behavior at different positions in the TiO/MAPbI system. In the perovskite bulk-like region, I exhibits high mobility and dissociates detrimental iodine trimers, facilitating small-to-large polaron transition and promoting shallow trap formation.
View Article and Find Full Text PDF