Results 101 to 110 of about 41,075 (284)

Synthesis of some new formazanyl-thiazolyl-indoles and formazanyl-oxazolyl-indoles as inflammation inhibitors

open access: yes, 2000
357-362Various 3-(2-arylideneaminothiazol-4-yl)indoles 3a-e and 3-(2-arylideneaminooxazol-4-yl)indoles 3a'-e' on diazotisation with aniline afford 3-[2-(1'-phenyl-3′-substituted-aryl-formazan-4′-yl)thiazol-4-yl] indoles 4a-e and 3-[2-(1'-substituted ...
Ekta Bansal   +5 more
core   +1 more source

Synergistic Probe Combining Lysosome Anchoring and Tumor Defense System Targeting for Precise Tumor Visualization

open access: yesAdvanced Science, EarlyView.
A new generation of high‐precision fluorescent probes based on the lysosomal characteristics in tumor metabolic reprogramming and overexpressed tumor markers. The probe (CN‐D‐GGT) selectively label cancer cells in co‐culture systems and distinguish tumor lesions from inflamedand normal tissues in vivo, enabling precise tumor imaging.
Yang Shen   +6 more
wiley   +1 more source

Discovery and Biosynthesis of the Novel Glycotetrapeptide Antibiotic Biffamycin A

open access: yesAngewandte Chemie, EarlyView.
Genetic de‐regulation of a silent biosynthetic pathway allowed isolation and characterisation of a novel glycopeptide antibiotic named biffamycin A, which harbours unprecedented 5‐chloro‐4‐methoxy tryptophan and 3R‐hydroxy(α‐D‐mannoysl)‐D‐lysine moieties and is bioactive against MRSA and VRSA.
Michael W. Brigham   +11 more
wiley   +2 more sources

Copper(II)-Catalyzed Direct C3 Chalcogenylation of Indoles

open access: yesMolecules
3-Chalcogenylindoles serve as crucial building blocks in organic synthesis and pharmaceutical chemistry. Herein, we describe a simple and general synthesis of 3-chalcogenylindoles through the direct C–H chalcogenation of indoles using N-selenophthalimide
Liuyan Pan   +5 more
doaj   +1 more source

Dehydration triggered asymmetric hydrogenation of 3-(a-hydroxyalkyl)indoles.

open access: yes, 2011
Dehydration triggered asymmetric hydrogenation of 3-(a-hydroxyalkyl ...
段英   +6 more
core  

Sulfated Cyclocarya Paliurus Polysaccharide Sorchestrates the Gut Microbiome to Mobilize a Host‐Derived 12‐HEPE Against Ulcerative Colitis

open access: yesAdvanced Science, EarlyView.
A sulfated polysaccharide (SCP) from Cyclocarya paliurus alleviates ulcerative colitis by reshaping the gut microbiome. This remodeled microbiota orchestrates the upregulation of the host‐derived lipid 12‐HEPE, which directly inhibits the TLR4/NF‐κB pathway to suppress inflammation.
Xianxiang Chen   +11 more
wiley   +1 more source

Mechanochemistry Meets Catalysis: Metal Complexes for Greener Organic Transformations

open access: yesAngewandte Chemie, EarlyView.
Mechanochemistry is redefining metal catalysis by controlling catalyst formulation, speciation, and deployment. This Review shows how milling, LAG, RAM, and TSE enable rapid metal‐complex assembly, distinctive catalytic manifolds, and scalable synthesis beyond solution chemistry.
Sourav Behera   +2 more
wiley   +2 more sources

Deproto-metallation of N-arylated pyrroles and indoles using a mixed lithium–zinc base and regioselectivity-computed CH acidity relationship

open access: yesBeilstein Journal of Organic Chemistry, 2015
The synthesis of N-arylated pyrroles and indoles is documented, as well as their functionalization by deprotonative metallation using the base in situ prepared from LiTMP and ZnCl2·TMEDA (1/3 equiv).
Mohamed Yacine Ameur Messaoud   +12 more
doaj   +1 more source

AI‐Designed Cyclic Peptides Enable Controllable Modulation of the CD28 Immune Checkpoint

open access: yesAdvanced Science, EarlyView.
AI‐designed cyclic peptides enable controllable modulation of the CD28 immune checkpoint through reversible disruption of CD28‐CD80/CD86 interactions. The lead peptide, CIP‐3, suppresses T‐cell activation without intrinsic agonist activity, demonstrates dose‐dependent efficacy in a murine colitis model, and attenuates inflammatory cytokine production ...
Katarzyna Kuncewicz   +4 more
wiley   +1 more source

Promiscuity‐Guided Enzyme Evolution via Substrate Multiplexed Screening

open access: yesAngewandte Chemie, EarlyView.
Through historical context and recent examples, this Minireview summarizes the strengths, limitations, and practical considerations for the implementation of substrate multiplexed screening (SUMS) in enzyme evolution. ABSTRACT An enzyme's ability to react with diverse substrates while maintaining high yield and selectivity, termed “substrate ...
Holly A. Weilbaker   +3 more
wiley   +2 more sources

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