Relevant bibliographies by topics / Pyrazine Amides

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Pyrazine Amides'

Author: Grafiati
Published: 5 June 2025
Last updated: 1 August 2025

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Journal articles on the topic "Pyrazine Amides"

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Allen, Annette D., Andrei V. Fedorov, Nanyan Fu, et al. "Pyrazinyl- and pyrimidinylketenes, bisketenes, and ylides: direct observation and nucleophilic reactivity." Canadian Journal of Chemistry 92, no. 12 (2014): 1119–30. http://dx.doi.org/10.1139/cjc-2014-0208.

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Pyrazinylketene (9) and 4-pyrimidinylketene (11), identified by their IR absorption at 2128 and 2130 cm−1, respectively, are formed in CH3CN as transient intermediates by photolysis of the corresponding diazoketones. The corresponding ylides 10 and 12 are formed concurrently as longer-lived intermediates identified by their distinctive IR and UV absorption. Reactions of 2-pyridylketene and of 9 and 11 with diethylamine form initial amide enol intermediates leading to dihydroheteroarene intermediates and then to amides, whereas amide enols are not observed in reactions with n-butylamine. Reacti
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Zitko, Jan, Alžběta Mindlová, Ondřej Valášek, et al. "Design, Synthesis and Evaluation of N-pyrazinylbenzamides as Potential Antimycobacterial Agents." Molecules 23, no. 9 (2018): 2390. http://dx.doi.org/10.3390/molecules23092390.

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Three series of N-(pyrazin-2-yl)benzamides were designed as retro-amide analogues of previously published N-phenylpyrazine-2-carboxamides with in vitro antimycobacterial activity. The synthesized retro-amides were evaluated for in vitro growth inhibiting activity against Mycobacterium tuberculosis H37Rv (Mtb), three non-tuberculous mycobacterial strains (M. avium, M. kansasii, M. smegmatis) and selected bacterial and fungal strains of clinical importance. Regarding activity against Mtb, most N-pyrazinylbenzamides (retro-amides) possessed lower or no activity compared to the corresponding N-phe
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Wackerbarth, Ines, Ni Nyoman Agnes Tri Widhyadnyani, Simon Schmitz, et al. "CuII Complexes and Coordination Polymers with Pyridine or Pyrazine Amides and Amino Benzamides—Structures and EPR Patterns." Inorganics 8, no. 12 (2020): 65. http://dx.doi.org/10.3390/inorganics8120065.

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Isonicotine amide, picoline amide, pyrazine 2-amide, 2- and 4-amino benzamides and various CuII salts were used to target CuII complexes of these ligands alongside with 1D and 2D coordination polymers. Under the criterion of obtaining crystalline and single phased materials a number of new compounds were reliably reproduced. Remarkably, for some of these compounds the ideal Cu:ligand ratio of the starting materials turned out to be very different from Cu:ligand ratio in the products. Crystal and molecular structures from single-crystal XRD were obtained for all new compounds; phase purity was
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Dolezal, Martin, Miroslav Miletin, Jiri Kunes, and Katarina Kralova. "Substituted Amides of Pyrazine-2-carboxylic acids: Synthesis and Biological Activity." Molecules 7, no. 3 (2002): 363–73. http://dx.doi.org/10.3390/70300363.

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Grill, Birgit, Maximilian Glänzer, Helmut Schwab, et al. "Functional Expression and Characterization of a Panel of Cobalt and Iron-Dependent Nitrile Hydratases." Molecules 25, no. 11 (2020): 2521. http://dx.doi.org/10.3390/molecules25112521.

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Nitrile hydratases (NHase) catalyze the hydration of nitriles to the corresponding amides. We report on the heterologous expression of various nitrile hydratases. Some of these enzymes have been investigated by others and us before, but sixteen target proteins represent novel sequences. Of 21 target sequences, 4 iron and 16 cobalt containing proteins were functionally expressed from Escherichia coli BL21 (DE3) Gold. Cell free extracts were used for activity profiling and basic characterization of the NHases using the typical NHase substrate methacrylonitrile. Co-type NHases are more tolerant t
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Ghosh, Arun K., Wayne J. Thompson, M. Katharine Holloway, et al. "Potent HIV protease inhibitors: the development of tetrahydrofuranylglycines as novel P2-ligands and pyrazine amides as P3-ligands." Journal of Medicinal Chemistry 36, no. 16 (1993): 2300–2310. http://dx.doi.org/10.1021/jm00068a006.

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Tumova, Lenka, Katerina Gallova, Jana Rimakova, Martin Dolezal, and Jiri Tuma. "The effect of substituted amides of pyrazine-2-carboxylic acids on flavonolignan production in Silybum marianum culture in vitro." Acta Physiologiae Plantarum 27, no. 3 (2005): 357–62. http://dx.doi.org/10.1007/s11738-005-0012-8.

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Zhou, Yan Mei, Yong Wei, Jin Yang, Hai Hai Li, Miao Deng Liu, and Nian Yu Huang. "Synthesis and In Vitro Anti-Inflammatory Activity of Pyrrolo[1,2-A]pyrazines via Pd-Catalyzed Intermolecular Cyclization Reaction." Advanced Materials Research 830 (October 2013): 115–18. http://dx.doi.org/10.4028/www.scientific.net/amr.830.115.

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Pyrrolo [1,2-a] pyrazine possessed widely bioactivities due to its particular structure. In this work, three pyrrolo [1,2-a] pyrazines derivatives were synthesized from the 2-bromo-5-methoxypyrazine and propargyl amines or ethers through the Pd-catalyzed intermolecular cycloisomerization strategy. Their structures were characterized by NMR, IR, EI-MS and elemental analysis, and all of them exhibited moderatein vitroanti-inflammatory effects with the inhibitions of 43-59% against IL-6 at 50 μM. The compound3crevealed relatively good anti-inflammatory activities. The bioactive pyrrolo [1,2-a] py
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GHOSH, A. K., W. J. THOMPSON, M. K. HOLLOWAY, et al. "ChemInform Abstract: Potent HIV Protease Inhibitors: The Development of Tetrahydrofuranylglycines as Novel P2-Ligands and Pyrazine. Amides as P3-Ligands." ChemInform 24, no. 52 (2010): no. http://dx.doi.org/10.1002/chin.199352194.

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Mukhopadhyay, Uday, Richard Galian та Ivan Bernal. "Metal induced cleavage of amide bonds. Part 3. Cleavage of aromatic amides and isolation of [cis-α-Co(trien) (salicylamide)](ClO4)2 (I), Co(tren)(pyrazine-2-carboxylato)](ClO4)2·2H2O (II) and [Co(tren)(pyrazine-2,3-dicarboxylatomonoamide)](ClO4)Cl (III)". Inorganica Chimica Acta 362, № 11 (2009): 4237–40. http://dx.doi.org/10.1016/j.ica.2009.05.034.

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Dissertations / Theses on the topic "Pyrazine Amides"

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Tembo, Norbert Olivier. "Synthèse et étude physicochimique des 4-amino-1, 2, 3, 4-tétrahydro-1-isoquinolones et 2-quinolones ; 4-aryl-2, 3-dihydropyrrolizines ; 4-aryl-1-oxo-1, 2, 3, 4-tétrahydro-pyrrolo [1, 2-a] pyrazines ; 4-aryl-2-imidazolidinones." Caen, 1990. http://www.theses.fr/1990CAEN4044.

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Buron, Frédéric. "Etude de complexes « ates » en série diazinique : Synthèse de molécules biologiquement actives à cœur pyrazinique." Rouen, 2006. http://www.theses.fr/2006ROUES020.

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Dans une première partie, nous avons mis au point une nouvelle méthodologie de synthèse en série diazinique, en effectuant la réaction d’échange halogène métal par l’utilisation du tri-n-butylmagnésiate de lithium. Dans une seconde partie, nous nous sommes proposé de réaliser une synthèse énantiosélective des Barrenazines par formation du cycle pyrazinique à partir de l’acide (L)-aspartique. Nous avons pu synthétiser un précurseur de la Barrenazine A. Nous avons effectué la synthèse de produits naturels extraits des ascidies : les Botryllazines A et B qui présentent des propriétés cytotoxiques
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Ovdiichuk, Olga. "New Variety of Pyridine and Pyrazine-Based Arginine Mimics : Synthesis, Structural Study and Preliminary Biological Evaluation." Thesis, Université de Lorraine, 2016. http://www.theses.fr/2016LORR0289/document.

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Ce travail décrit la synthèse, l’étude structurale et une première évaluation des propriétés biologiques d’une nouvelle famille de mimes de l’arginine issus de motifs pyridine et pyrazine. Pour cela, nous avons mis au point la synthèse de nouveaux peptidomimétiques dans lequels la fonction amidine est remplacée par une amidoxime mime potentiel du résidu arginine. La fonctionnalisation chimique de ces motifs a permis à partir de la pyridine (ou pyrazine) 2,3-disubstituée l’obtention de nouveaux coudes non-peptidiques possédant des motifs amidoximes estérifiés par des acides aminés ou modifiés p
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Cieślikiewicz-Bouet, Monika. "Synthesis, structural investigations and evaluation of pyrazine sensitizers for lanthanides emitting in near-infrared and novel phosphine derivatives." Electronic Thesis or Diss., Orléans, 2012. http://www.theses.fr/2012ORLE2088.

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En raison de l’omniprésence des hétérocycles azotés et de leurs propriétés biologiques, une attention particulière est accordée au développement de méthodologie pour leur synthèse et leur fonctionnalisation. L’étude de la fonctionnalisation d’énamides constitue une thématique importante car ces motifs s’avèrent être des outils synthétiques polyvalents permettant d’accéder à des dérivés hétérocycliques complexes. Les réactions de couplage Pd-catalysées constituent une méthode de choix rapide et efficace pour la synthèse d'énamides, notamment à partir de phosphates d'énols issus de lactames, d’i
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Cieślikiewicz-Bouet, Monika. "Synthesis, structural investigations and evaluation of pyrazine sensitizers for lanthanides emitting in near-infrared and novel phosphine derivatives." Thesis, Orléans, 2012. http://www.theses.fr/2012ORLE2088.

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En raison de l’omniprésence des hétérocycles azotés et de leurs propriétés biologiques, une attention particulière est accordée au développement de méthodologie pour leur synthèse et leur fonctionnalisation. L’étude de la fonctionnalisation d’énamides constitue une thématique importante car ces motifs s’avèrent être des outils synthétiques polyvalents permettant d’accéder à des dérivés hétérocycliques complexes. Les réactions de couplage Pd-catalysées constituent une méthode de choix rapide et efficace pour la synthèse d'énamides, notamment à partir de phosphates d'énols issus de lactames, d’i
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Zouikri, Mohamed. "Le résidu aza-prolyle, son introduction dans un peptide : modifications structurales dues à la substitution AzPRO/PRO." Vandoeuvre-les-Nancy, INPL, 1996. http://www.theses.fr/1996INPL079N.

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Les azapeptides constituent une famille de pseudopeptides dans laquelle le groupe CHalpha d'un ou plusieurs résidus a été substitué par un atome d'azote isoélectronique. Bien que de nombreux analogues de peptides bioactifs aient été synthétisés et biologiquement testés, peu de travaux concernant leur structure spatiale ont été rapportés jusqu'a ce jour. Un des avantages de cette substitution est de garder intacte la nature chimique de la chaine latérale dont le rôle est si important, comme par exemple, dans les processus de reconnaissance moléculaire. De plus, nous avons choisi d'étudier l'ana
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Sengupta, Satirtha. "Studies on Metal-Organic Frameworks and Metallogels of Pyrazole based ligands and their Amide Derivatives." Thesis, 2019. http://hdl.handle.net/10821/8220.

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Metal-organic frameworks (MOFs) or coordination polymers are one, two or three dimensional coordination networks, usually porous, comprising of metal ions linked together with one or more organic ligand or linker molecules having varied applications in the field of gas storage and separation, magnetism, catalysis etc. However there is a subtle difference in the definition of the term coordination polymers and metal organic frameworks. The former merely signifies an extended network formed due to coordination bond between metal and ligand(s) monomers and says nothing about the final structure o
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Shih, Cheng-Chang, and 施承昌. "Synthesis, Structures and Emission Properties of Silver(I) Coordination Polymer Containing N-(2-pyrazinyl)-P,P’-diphenyl-phosphinous amide." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/06368104512697253370.

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碩士<br>中原大學<br>化學研究所<br>100<br>Abstract This thesis discusses the synthesis and structures of HDPPAPz ; Ag(HDPPAPz)(p-tso), 1, Ag(HDPPAPz)Cl, 2, and Ag2(HDPPAPz)2 (NO3)2 CH3CN, 3, where HDDPAPz is N-(2-pyrazinyl)-P,P-diphenyl- phosphin- ous amide). All the compounds have been characterized by EA, UV-Vis, NMR, TGA and PL, and structurally characterized by X-ray crystallo- graphy. While the HDPPAPz ligand in 1 and 2 show μ2- κ1,κ2 bonding mode, those in 3 adopt both the μ2- κ1,κ2 and μ2- κ1,κ1 bonding modes, resulting in zigzag structures for all the three complexes. In compound 1, the 1D zigz
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Su, Wei-Nien, and 蘇威年. "Convenient and Efficient“One-pot”Synthesis of N-(1,3-Diphenyl-1H-pyrazole-5-yl)amide Derivatives: Positive allosteric Modulators of mGluR5." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/14099096043064355484.

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碩士<br>中國醫藥大學<br>藥物化學研究所<br>96<br>Glutamate is the major excitatory transmitter in the mammalian central nervous system. Metabotropic glutamate receptors (mGluRs) play an important role in controlling neuronal excitability and synaptic transmission in the central nervous system (CNS) of the mammalian brain. N-(1.3-Diphenylare1-H-pyrazol-5-yl)benzamide derivatives were recently developed as the first centrally active positive allosteric modulator of rat and human metabotropic glutamate receptor mGluR5 subtype. N-(1,3- diphenyl-1H-pyrazol-5-yl)amide derivatives were convenient and efficient synth
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Diercxsens, Nicolas. "Synthèse d’amidines et de composés trifluorométhylés par le biais de molécules hautement réactives." Thèse, 2017. http://hdl.handle.net/1866/20038.

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Book chapters on the topic "Pyrazine Amides"

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Berlinck, R. G. S., M. H. Kossuga, and A. M. Nascimento. "Reaction of Primary Amines with 1-Pyrazole-1-carboximidamides." In Four Carbon-Heteroatom Bonds. Georg Thieme Verlag KG, 2005. http://dx.doi.org/10.1055/sos-sd-018-01280.

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Conference papers on the topic "Pyrazine Amides"

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Pogrebnoi, Vsevolod, Natalia Sucman, and Fliur Macaev. "The amides of dehydroabietic acid in synthesys of spiropyranes with the participation of carbonyl compounds." In Scientific seminar with international participation "New frontiers in natural product chemistry". Institute of Chemistry, Republic of Moldova, 2023. http://dx.doi.org/10.19261/nfnpc.2023.ab16.

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The abstract presents the synthesis of new spiropyranes from substituted 5-aminoisatin 6 in multicomponent reaction with different carbonyl compounds. It is known that spiropyranes have various activities, which depend from spatial structure and substituents [1]. From the other side, previously mentioned dehydroabietic acid 1 [2] is interesting object to study due to its molecular structure, chemical and biological properties.Initially, our strategy was to obtain the substituted isatine 6 from easily accessible isatine 3. To implement that approach, previously obtained [2] 5-nitroisatine react
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Petrović, Biljana. "TRANSITION METAL ION COMPLEXES AS POTENTIAL ANTITUMOR AGENTS." In 1st INTERNATIONAL Conference on Chemo and BioInformatics. Institute for Information Technologies, University of Kragujevac,, 2021. http://dx.doi.org/10.46793/iccbi21.009p.

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Discovery of the antitumor activity of platinum complex, cisplatin, cis-Pt(NH3)2Cl2, and later carboplatin and oxaliplatin, led to the intensive investigation of the potential antitumor activity of the huge number of platinum complexes. Furthermore, it is well-known that platinum complexes express toxicity, numerous side effects and resistance, so the scientists make a lot of efforts to synthetize, beside Pt(II) and Pt(IV), other non-platinum compounds with potential antitumor activity, such as Pd(II), Ru(II/III) and Au(III) complexes. The goal of this study is to summarize the results of the
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