Results 61 to 70 of about 4,204 (201)

2-Aminopyridinium isonicotinate 2-aminopyridine

Acta Crystallographica Section E Structure Reports Online, 2007
In the title compound, C5H7N2+·C6H4NO2−·C5H6N2, the components are linked into a two-dimensional network through N—H⋯O and N—H⋯N hydrogen bonds. Adjacent layers are further linked by C—H⋯O hydrogen bonds, forming a three-dimensional framework.
openaire   +1 more source

Reaction of Ethoxymethylenemalononitrile with 2-Aminopyridines

Chemical and Pharmaceutical Bulletin, 1974
A nucleophilic reaction of 2-aminopyridines (or 2-aminoheterocycles) with ethoxymethylenemalononitrile was investigated and structures of the reaction products were assigned as shown in Table II. Similar reactions using 2-aminopyridine hydrochloride were found to give 1, 2-dihydro-1- (2, 2-dicyanovinyl) -2-iminopyridine (IV), and 1, 2-dihydro-1- (2, 2 ...
YOSHIHISA OKAMOTO, YOSHIHISA KURASAWA, KANAME TAKAGI, ATSUSHI TAKADA, TAKEO UEDA   +4 more
openaire   +2 more sources

Therapeutic Gases in Biomedicine: Updates on Nitric Oxide and Beyond

Advanced Science, EarlyView.
Therapeutic gases, including NO, CO, H2S, H2, CO2, O2, and Xe, play vital roles in cellular signaling and repair. This review highlights the emerging carriers and delivery systems that enable controlled, localized gas release for diagnostic and therapeutic applications.
Syed Muntazir Andrabi, Navatha Shree Sharma, Imran Ibn Gani Rather, S. M. Shatil Shahriar, Jingwei Xie   +4 more
wiley   +1 more source

2-Aminopyridin-1-ium triiodide

Acta Crystallographica Section E, 2013
The asymmetric unit of the title compound, C5H7N2+.I3−, consists of one 2-aminopyridin-1-ium cation (apyH+) and one triiodide anion, both located in general postions. The apyH+ cation is planar within the experimental uncertainties.
Guido J. Reiss, Peer B. Leske
doaj   +1 more source

Dorsal Raphe VIP Neurons Are Critical for Survival‐Oriented Vigilance

Advanced Science, EarlyView.
DRNVIP neurons in mice and primates are strategically positioned to influence the central extended amygdala via feedback loops. They regulate the excitability of PKC‐δ neurons in the ovBNST and CeA through glutamate release. Their ablation heightens activity in these regions, disrupts active‐phase sleep architecture, enhances risk assessment behaviors ...
Adriane Guillaumin, Emma Perrot, Thibault Dhellemmes, Laura Boi, Daniel De Castro Medeiros, Christelle Glangetas, Sylvie Dumas, Sandra Dovero, Nathalie Biendon, Elodie Ladeveze, Maëlle Hardel, Marc Landry, Erwan Bezard, Jérôme Baufreton, Gilberto Fisone, François Georges   +15 more
wiley   +1 more source

Nitric oxide synthases in GtoPdb v.2023.1 [PDF]

, 2023
Nitric oxide synthases (NOS, E.C. 1.14.13.39) are a family of oxidoreductases that synthesize nitric oxide (NO.) via the NADPH and oxygen-dependent consumption of L-arginine with the resultant by-product, L-citrulline.
Billiar, Timothy R., Cirino, Giuseppe, Fulton, David, Motterlini, Roberto, Papapetropoulos, Andreas, Szabo, Csaba   +5 more
core   +2 more sources

Chalcones as versatile synthons for the synthesis of 5- and 6-membered nitrogen heterocylces [PDF]

, 2014
Chalcones belong to the flavonoid family which constitutes one of the major classes of naturally occurring oxygen heterocyclic compounds. The alpha,beta-unsaturated carbonyl system of chalcones possesses two electrophilic reactive centers allowing them ...
Albuquerque, Hélio, Cavaleiro, José, Santos, Clementina M.M., Silva, Artur   +3 more
core   +1 more source

Structural diversity of different aminomethylpyridinium hexafluoridosilicates

Acta Chimica Slovenica
A series of new aminomethylpyridinium hexafluoridosilicate salts with the formula (RH)2[SiF6] (where R = 2-amino-3-methylpyridine (1), 2-amino-4-methylpyridine (2), 2-amino-5-methylpyridine (3) and 2-amino-6-methylpyridine (4)) were prepared by the ...
Andrej Pevec
doaj   +1 more source

Bioactive imidamide-based compounds targeted against nitric oxide synthase [PDF]

, 2022
The selective inhibition of inducible nitric oxide synthase (iNOS) has become an interesting goal for the treatment of diseases where the immune and inflammatory response of the organism is involved.
Arias Bordajandi, Fabio, Camacho Quesada, Encarnación, Carrión Peregrina, María Dora, Duarte Pérez, Juan Manuel, Franco Montalbán, Francisco, Romero Pérez, Miguel   +5 more
core   +1 more source

Recent Advances in Chemical Probing Strategies for RNA Structure Determination in Vivo

Chemistry – A European Journal, EarlyView.
This Review illustrates how structural probes combined with advanced sequencing technologies are revolutionizing our ability to map RNA structures and interactions within living cells. It highlights the development of innovative strategies tailored to probe RNA structures in particular biological contexts.
Maryana Yarshova, Jieyu Zhao, Chun Kit Kwok   +2 more
wiley   +1 more source