Results 81 to 90 of about 12,572 (245)

The continuing significance of chiral agrochemicals

open access: yesPest Management Science, Volume 81, Issue 4, Page 1697-1716, April 2025.
In the time frame 2018–2023, around 43% of the 35 chiral agrochemicals introduced to the market (herbicides, fungicides, insecticides, acaricides, and nematicides) contain one or more stereogenic centers in the molecule, and almost 69% of them have been marketed as racemic mixtures of enantiomers or stereoisomers.
Peter Jeschke
wiley   +1 more source

Design, synthesis and activity evaluation of tetrahydroisoquinoline‐based programmed cell death ligand 1 inhibitors

open access: yesSmart Molecules, EarlyView.
Based on a 3D‐quantitative structure‐activity relationship pharmacophore model, structural optimization of Y6 yielded Y7f. Mechanistic studies revealed that Y7f acted as a programmed death receptor 1/programmed cell death ligand 1 (PD‐L1) interaction inhibitor by inducing PD‐L1 dimerization. Y7f restored T‐cell function.
Menglin Yu   +15 more
wiley   +1 more source

Thiazoles in glycosylation reactions: Novel synthesis of thiazole thioglycosides

open access: yesHeteroatom Chemistry, 2017
AbstractThis research reports a novel method for synthesizing new thiazole thioglycosides. This series of thiazole thioglycosides were designed by the reaction of potassium cyanocarbonimidodithioate 2 with benzoyl acetonitrile 3a and ethyl bromoacetate 3b in the presence of ethanol‐KOH to give the corresponding potassium 4‐amino‐5‐substituted‐thiazole ...
Mamdouh A. Abu‐Zaied   +1 more
openaire   +1 more source

Synthesis of hydroxylated hexahydropyrrolo[2,1-b]thiazoles

open access: yes, 2004
An unexpected ring contraction of 7,5-fused bicyclic thiazolidinelactams yields hexahydropyrrolo[2,1-b]thiazoles in a single synthetic step. Three stereocentres are inverted along the highly stereoselective reaction path.
Geyer, Armin, Agoston, Karoly
core   +1 more source

Sulfur‐ and Selenium‐Decorated Coumarins: Synthetic Strategies Involving Cyclization and Late‐Stage Functionalization

open access: yesThe Chemical Record, EarlyView.
Two decades of synthetic strategies for sulfur‐, selenium‐decorated coumarins are critically surveyed through 44 literature reports, with particular emphasis on derivatives functionalized at the C‐3 and C‐4 positions. This review reports the direct construction of the coumarin framework through cyclization processes and late‐stage functionalization of ...
Bruna R. Schneider   +6 more
wiley   +1 more source

Copper-Catalyzed Dehydrogenative Cross-Coupling of Benzothiazoles with Thiazoles and Polyfluoroarene

open access: yes, 2016
A copper-catalyzed dehydrogenative cross-coupling of benzothiazoles with thiazoles and polyfluoroarene under mild reaction conditions is described. This protocol provides a straightforward and operationally simple method for the synthesis of the 2,2 ...
Zhao Chen (92571)   +2 more
core   +1 more source

Facile Synthesis of 2,5-Disubstituted Thiazoles from Terminal Alkynes, Sulfonyl Azides, and Thionoesters

open access: yes, 2015
A sequential procedure for the synthesis of 2,5-disubstituted thiazoles from terminal alkynes, sulfonyl azides, and thionoesters is reported. A copper­(I)-catalyzed 1,3-dipolar cycloaddition of terminal alkynes with sulfonyl azides affords 1-sulfonyl-1,2,
Tomoya Miura (1600264)   +4 more
core   +2 more sources

Wood Sawdust as a Low‐Cost Filler in Whole‐Tire Reclaimed Rubber: Mechanical Characterization and Factory‐Scale Cost Analysis

open access: yesJournal of Applied Polymer Science, Volume 143, Issue 41, November 5, 2026.
Whole‐tire reclaimed rubber is upgraded with wood sawdust, a carpentry by‐product available at no cost, across loadings from 0 to 20 wt%. At 5 wt%, tensile strength, elongation, hardness, viscosity, and water absorption all stay within commercial specification, and real factory data show an annual production saving near $62,000 with no capital ...
Mohammed S. Matar   +3 more
wiley   +1 more source

Medicinal Chemistry Aspects of Thiazole and Thiazolidine Derivatives as Fundamental Building Blocks to Design New NNRTIs Against HIV‐1 Reverse Transcriptase

open access: yesChemMedChem, Volume 21, Issue 19, 14 October 2026.
HIV‐1 reverse transcriptase (HIV‐1 RT) is a polymerase enzyme and a key target in HIV‐1 therapy. The discovery of selective HIV‐1 RT inhibitors has highlighted thiazole scaffolds and their derivatives, thiazolidine‐2‐one and thiazolidine‐2,4‐dione, as promising structures for the rational design of novel non‐nucleoside reverse transcriptase inhibitors (
José Arion da Silva Moura   +9 more
wiley   +1 more source

Bioactive thiazole and benzothiazole derivatives

open access: yesEuropean Journal of Medicinal Chemistry, 2015
The heterocycles are the versatile compounds existing in almost all natural products and synthetic organic compounds, usually associated with one or the other biological activity. Among the heterocycles the thiazoles and benzothiazoles occupy a prominent position.
Rouf, Abdul, Tanyeli, Cihangir
openaire   +3 more sources

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