Results 31 to 40 of about 3,296 (168)
Preparation of imidazo[1,2-a]-N-heterocyclic derivatives with gem-difluorinated side chains
Beilstein Journal of Organic Chemistry, 2017 Using an aerobic oxidative coupling, different new imidazo[1,2-a]-N-heterocycles with gem-difluroroalkyl side chains have been prepared in fair yields by the reaction of gem-difluoroenones with aminopyridines, -pyrimidines and -pyridazines.
Layal Hariss +5 more
doaj +1 more source
Flow Hydrodediazoniation of Aromatic Heterocycles
Molecules, 2019 Continuous flow processing was applied for the rapid replacement of an aromatic amino group with a hydride. The approach was applied to a range of aromatic heterocycles, confirming the wide scope and substituent-tolerance of the processes. Flow equipment
Liesa Röder +2 more
doaj +1 more source
METHODS OF NITROPYRIDINE SYNTHESIS
Siberian Journal of Life Sciences and Agriculture, 2021 Background. Pyridine derivatives are widely used in pharmaceuticals, agrochemistry, as well as in the production of new materials. The pyridine and piperidine rings are the main structural fragments of numerous natural alkaloids with a wide spectrum of ...
Evgeniya V. Ivanova +4 more
doaj +1 more source
The Reaction of 2-Aminopyridines with Ethyl Diazoacetate
CHIMIA, 1974 It has been found that ethyl diazoacetate reacted with 2- amino-pyridines to give the corresponding 2-carbethoxy- methylaminopyridines (1). In m-xylene as solvent, thermal decomposition of the diazo ester proceeded with preferential attack on m-xylene ...
B. Doma +3 more
doaj +1 more source
Tropical Medicine and Infectious Disease, 2023 Chagas disease is derived from the infection by the protozoan Trypanosoma cruzi. In many countries, benznidazole is the only drug approved for clinical use despite several side effects and the emergence of resistant parasite strains. In this context, our
Rafaela Silva-Oliveira +5 more
doaj +1 more source
Advanced Materials Technologies, EarlyView.ABSTRACT Electrochemical biosensors enable the accurate and timely detection of clinical biomarkers, improving healthcare and precision medicine. MXene nanosheets, a class of 2D transition metal carbides, nitrides, and carbonitrides, are promising materials for developing next‐generation electrochemical biosensors due to their unique physicochemical ...
Muhsin Ali +4 more
wiley +1 more source
A Tac1‐Expressing Brainstem Pathway Underlies the Pathogenesis of Trigeminal Neuralgia
Advanced Science, EarlyView.A critical TG‐Sp5CTac1‐PBNTac1 pathway drives trigeminal neuropathic pain (TNP). Tac1‐expressing parabrachial nucleus (PBNTac1) neurons exhibit heightened responses to innocuous stimuli in TNP, and chemogenetic inhibition of these neurons effectively prevents TNP development.
Liting Sun +11 more
wiley +1 more source
Respiratory‐Limbic Coupling via a Thalamic Circuit Alleviates Anxiety
Advanced Science, EarlyView.This study delineates a conserved preBötCGlu→PVT→CeA circuit that gates anxiety and respiration. Activation of this circuit is anxiolytic and respiratory‐stabilizing, while its inhibition has the opposite effect. Mechanistically, PVT exerts its anxiolytic action via a disinhibitory microcircuit: its inputs preferentially target CeL GABAergic neurons ...
Shangyu Bi +15 more
wiley +1 more source
Advanced Science, EarlyView.A brain‐adhesive sensor (B‐Sensor) was developed by integrating a self‐healing biodegradable elastomer, a tissue‐adhesive hydrogel, and molybdenum electrodes. The B‐Sensor adheres to brain tissue, conforms to cortical curvatures, and maintains stable electrical performance over the intended period for reliable recording of spatiotemporal brain activity
Heewon Choi +8 more
wiley +1 more source
6-Benzyl-3,4-dimethoxy-10-methylpyrido[2′,1′:2,3]imidazo[4,5-c]isoquinolin-5(6H)-one
Acta Crystallographica Section E, 2009 Pyrido[2′,1′:2,3]imidazo[4,5-c]isoquinolin-5(6H)-ones such as the title compound, C24H21N3O3, can be obtained in a few minutes in a microwave-assisted three-component reaction from 2-aminopyridines, isocyanides and 2 ...
Kathrin Meindl +3 more
doaj +1 more source