Results 31 to 40 of about 16,016 (239)

Preparation and Characterization of NiCoFe2O4 Nanoparticles as an Effective Catalyst for the Synthesis of Trisubstituted Imidazole Derivatives Under Solvent-free Conditions

open access: yesActa Chimica Slovenica, 2022
In this study, NiCoFe2O4 nanoparticles were prepared and used as a reactive catalyst for the synthesis of trisubstituted imidazoles. The multicomponent reactions of aromatic aldehydes, benzil and ammonium acetate were carried out under solvent-free and ...
Leila Hemmesi, Hossein Naeimi
doaj   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

open access: yesFEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy   +4 more
wiley   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +5 more
wiley   +1 more source

Benzylic C–H Oxidation: Recent Advances and Applications in Heterocyclic Synthesis

open access: yesMolecules
Benzylic C–H oxidation to form carbonyl compounds, such as ketones, is a fundamental transformation in organic synthesis as it allows for the preparation of versatile intermediates.
Nonhlelo Majola, Vineet Jeena
doaj   +1 more source

Groups of antifungal drugs with role in animal health - Synthesis [PDF]

open access: yesMedicamentul Veterinar, 2021
Fungal infections are an important part of infectious pathology, their incidence increasing considerably, as a result of the widespread use of antibiotics, corticosteroids, cytostatics and immunosuppressive drugs.
Răzvan F. Moruzi   +6 more
doaj  

(4-(Adamantan-1-yl)-1-(isopropyl)-1H-imidazol-2-yl)methanol

open access: yesMolbank, 2023
(4-(Adamantan-1-yl)-1-(isopropyl)-1H-imidazol-2-yl)methanol was prepared through a five-step process starting from commercially available 1-acetyladamantane.
Ryan B. Gaynor   +2 more
doaj   +1 more source

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

open access: yesFEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel   +13 more
wiley   +1 more source

Synthesis of imidazoles promoted by H3PW12O40-amino-functionalized CdFe12O19@SiO2 nanocomposite

open access: yesNanocomposites, 2020
H3PW12O40-amino-functionalized CdFe12O19@SiO2 nanocomposite has been applied as an effective nanocatalyst for the preparation of imidazoles by three-component reactions of benzil, ammonium acetate, and benzaldehydes under solvent-free condition ...
Javad Safaei-Ghomi   +2 more
doaj   +1 more source

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

open access: yesFEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura   +2 more
wiley   +1 more source

Application of Artificial Neural Networks for Predicting Imidazole Derivatives' Antimicrobial Activity against Enterococcus faecalis [PDF]

open access: yesFarmacja Polska
Artificial neural networks (ANNs) have emerged as a valuable tool in facilitating the design of synthesis and guiding subsequent biological experiments in the systematic exploration for novel antimicrobial agents. In this paper, two multilayer perceptron-
Anna Badura   +4 more
doaj   +1 more source

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