Results 11 to 20 of about 2,717 (170)

3-Aryl-2H-azirines as annulation reagents in the Ni(II)-catalyzed synthesis of 1H-benzo[4,5]thieno[3,2-b]pyrroles [PDF]

open access: yesBeilstein Journal of Organic Chemistry
A high-yielding method for the synthesis of 3-arylbenzo[4,5]thieno[3,2-b]pyrroles has been developed via pyrrole ring annulation to the aromatic benzo[b]thiophene system, using 3-arylazirines as a N‒C=C synthon.
Julia I. Pavlenko   +5 more
doaj   +2 more sources

Untargeted metabolomics analysis of the spleens of ducks infected with Clostridium perfringens type A [PDF]

open access: yesBMC Veterinary Research
Background The aim of this study was to investigate the metabolomic changes in the spleens of ducks artificially infected with Clostridium perfringens type A. Twenty-four healthy ducks aged 1 d were used for this purpose.
Chengrong Zeng   +4 more
doaj   +2 more sources

Exploring the biological impact of bacteria-derived indole compounds on human cell health: Cytotoxicity and cell proliferation across six cell lines [PDF]

open access: yesToxicology Reports
Over the past two decades, research has increasingly focused on the interactions between diet, gut microbiota, and host organisms. Recent evidence suggests that tryptophan, an essential amino acid, can be metabolized by gut microbiota into indoles, which
Alisha Janiga-MacNelly   +4 more
doaj   +2 more sources

EFFECTS OF 3‐METHYLINDOLE IN CATTLE [PDF]

open access: yesBritish Journal of Pharmacology, 1977
Rapid intravenous injection of 3‐methylindole (3‐MI) was shown to induce an anaphylactoid‐like reaction in calves. This was suggested by the reduction in response to a repeat dose of 3‐MI, by the reduction of effects in the presence of antagonists to the putative mediators of anaphylaxis in cattle and by the production of signs similar to those seen ...
G, Atkinson   +3 more
openaire   +2 more sources

Antibiofilm and Antivirulence Properties of Indoles Against Serratia marcescens

open access: yesFrontiers in Microbiology, 2020
Indole and its derivatives have been shown to interfere with the quorum sensing (QS) systems of a wide range of bacterial pathogens. While indole has been previously shown to inhibit QS in Serratia marcescens, the effects of various indole derivatives on
Sivasamy Sethupathy   +4 more
doaj   +1 more source

Spectrophotometric study of the protonation processes of some indole derivatives in sulfuric acid [PDF]

open access: yesJournal of the Serbian Chemical Society, 1999
The protonation of 3-methylindole, D-tryptophan, 3-formylindole, 3-acetylindole and indolyl-2-carboxylic acid in sulfuric acid media was studied by UV spectro-scopy.
GORAN M. STOJKOVIC   +1 more
doaj   +2 more sources

Influence of 3-acetyl-5-hydroxy-2-methylindole on glioma cell proliferation and metabolism

open access: yesЖурнал Белорусского государственного университета: Химия, 2022
A 3-acetyl analogue of 5-hydroxyindole was synthesised and evaluated for its effects on rat C6 glioma cell functions. It was found that 3-acetyl-5-hydroxy-2-methylindole at 10 μmol/L led to a sharp reduction of mitochondrial membrane potential, induction
Jan U. Panada   +8 more
doaj   +1 more source

SYNTHESIS OF NEW ACTIVATED INDOLES; 3-(4’-BROMOPHENYL)-4,6-DIMETHOXY-2-METHYLINDOLE

open access: yesIndonesian Journal of Chemistry, 2010
3-(4'-Bromophenyl)-4,6-dimethoxy-2-methylindole has been synthesized from 4,6-dimethoxyaniline via the modified Bischler method. Reaction of 4,6-dimethoxyaniline with 2,4-dibromopropiophenone gave an aniline ketone in 85%, and then it was protected to ...
Tutik Dwi Wahyuningsih
doaj   +1 more source

Design and Synthesis of Novel N-Arylsulfonyl-3-(2-yl-ethanone)-6-methylindole Derivatives as Inhibitors of HIV-1 Replication

open access: yesPharmaceuticals, 2015
Seven novel N-arylsulfonyl-3-(2-yl-ethanone)-6-methylindole derivatives 4a–f and 6 were readily synthesized and have been identified as inhibitors of human immunodeficiency virus type-1 (HIV-1) replication. Initial biological studies indicated that among
Zhiping Che   +5 more
doaj   +1 more source

Interrupted Intramolecular Hydroaminomethylation of N-Protected-2-vinyl Anilines: Novel Access to 3-Substitued Indoles or Indoline-2-ols

open access: yesMolecules, 2022
A new synthetic alternative to the synthesis of 3-methyl indoles and 3-methyl indoline-2-ols with an excellent atomic economy is presented in this study.
Frank Hochberger-Roa   +6 more
doaj   +1 more source

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