Search results for "Pyrazine"

showing 10 items of 325 documents

CCDC 1559171: Experimental Crystal Structure Determination

2017

Related Article: Eloisa O. Ribeiro, Nathália R. de Campos, Antônio C. Doriguetto, Wdeson P. Barros, Marcos A. Ribeiro, Elgte E. B. De Paula, Humberto O. Stumpf, Francesc Lloret, Miguel Julve, Maria V. Marinho|2017|CrystEngComm|19|5460|doi:10.1039/C7CE01230F

[mu-2356-tetrakis(pyridin-2-yl)pyrazine]-bis{N-[(pyridine)carbonyl]pyridine-2-carboxamidato}-di-copper dinitrate pentahydrateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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Synthesis of the New Ring System Bispyrido[4',3':4,5]pyrrolo [1,2-a:1',2'-d]pyrazine and Its Deaza Analogue

2014

Derivatives of the new ring systems bispyrido[4',3':4,5]pyrrolo[1,2-a:1',2'-d] pyrazine-6,13-dione and its deaza analogue pyrido[4'',3'':4',5']pyrrolo-[1',2':4,5]pyrazino [1,2-a]indole-6,13-dione were conveniently synthesized through a four-step sequence. Symmetrical derivatives of the former ring system were obtained through self condensation. On the other hand, condensation of 6-azaindole carboxylic acid with indole 2-carboxylic acid afforded the deaza analogue ring system. Derivatives of the title ring system were tested by the National Cancer Institute (Bethesda, MD, USA) and four of them exhibited modest activity against MCF7 (a breast cancer cell line) and/or UO-31 (a renal cancer cel…

antiproliferative activitydiketopiperazines; plinabulin A; bispyrido-pyrrolo-pyrazine; pyrido-pyrrolopyrazino- indole; antiproliferative activityPyrazineStereochemistrypyrido-pyrrolo-pyrazino-indoleCarboxylic acidpyrido-pyrrolopyrazino- indoleCarboxylic AcidsPharmaceutical ScienceAntineoplastic AgentsRing (chemistry)ArticleAnalytical Chemistrylcsh:QD241-441chemistry.chemical_compoundlcsh:Organic chemistryBreast cancer cell lineHeterocyclic Compoundsdiketopiperazines; plinabulin A; bispyrido-pyrrolo-pyrazine; pyrido-pyrrolo-pyrazino-indole; antiproliferative activityDrug DiscoveryHumansPyrrolesPhysical and Theoretical Chemistrybispyrido-pyrrolo-pyrazinechemistry.chemical_classificationIndole testplinabulin AOrganic ChemistrydiketopiperazineSelf-condensationSettore CHIM/08 - Chimica FarmaceuticadiketopiperazineschemistryChemistry (miscellaneous)PyrazinesMCF-7 CellsMolecular MedicineDrug Screening Assays AntitumorCancer cell linesMolecules
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De novo Synthesis of Chemical Defenses in an Aposematic Moth

2018

Many animals protect themselves from predation with chemicals, both self-made or sequestered from their diet. The potential drivers of the diversity of these chemicals have been long studied, but our knowledge of these chemicals and their acquisition mode is heavily based on specialist herbivores that sequester their defenses. The wood tiger moth (Arctia plantaginis, Linnaeus, 1758) is a well-studied aposematic species, but the nature of its chemical defenses has not been fully described . Here, we report the presence of two methoxypyrazines, 2-sec-butyl-3-methoxypyrazine and 2-isobutyl-3-methoxypyrazine, in the moths’ defensive secretions. By raising larvae on an artificial diet, we confir…

aromaattiset yhdisteetsiilikkääteritteetchemical defensekemialliset yhdisteetpyrazineinsectpuolustusmekanismit (biologia)täpläsiilikäsbiosynteesi
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CCDC 642857: Experimental Crystal Structure Determination

2008

Related Article: L.M.Toma, D.Armentano, G.De Munno, J.Sletten, F.Lloret, M.Julve|2007|Polyhedron|26|5263|doi:10.1016/j.poly.2007.07.041

bis(2356-tetrakis(2-Pyridyl)pyrazine)-iron(ii) tetra(thiocyanato)-iron(ii)Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1557650: Experimental Crystal Structure Determination

2017

Related Article: Anders H. Pedersen, Miguel Julve, José Martínez-Lillo, Joan Cano, Euan K. Brechin|2017|Dalton Trans.|46|11890|doi:10.1039/C7DT02612A

bis(tetrabutylammonium) decabromo-(mu-pyrazine)-di-rheniumSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1892383: Experimental Crystal Structure Determination

2019

Related Article: Maria-Gabriela Alexandru, Nadia Marino, Diana Visinescu, Giovanni De Munno, Marius Andruh, Abdeslem Bentama, Francesc Lloret, Miguel Julve|2019|New J.Chem.|43|6675|doi:10.1039/C9NJ00420C

bis(tetraphenylphosphonium) [mu-25-bis(pyridin-2-yl)pyrazine]-octacyano-di-cobalt dihydrateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 711507: Experimental Crystal Structure Determination

2009

Related Article: C.Yuste, A.Bentama, N.Marino, D.Armentano, F.Setifi, S.Triki, F.Lloret, M.Julve|2009|Polyhedron|28|1287|doi:10.1016/j.poly.2009.02.029

catena-(bis(mu~2~-1133-Tetracyano-2-ethoxypropenido-N^1^N^3^)-(mu~2~-25-bis(2-pyridyl)pyrazine-NN')-diaqua-bis(1133-tetracyano-2-ethoxypropenido-N)-di-copper(ii))Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 903741: Experimental Crystal Structure Determination

2013

Related Article: I.J.Vitorica-Yrezabal,G.M.Espallargas,J.Soleimannejad,A.J.Florence,A.J.Fletcher,L.Brammer|2013|Chemical Science|4|696|doi:10.1039/c2sc21654j

catena-(bis(mu~3~-heptafluorobutanoato)-(mu~2~-tetramethylpyrazine)-di-silver)Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 742863: Experimental Crystal Structure Determination

2010

Related Article: G.Agusti, R.Ohtani, K.Yoneda, A.B.Gaspar, M.Ohba, J.F.Sanchez-Royo, M.C.Munoz, S.Kitagawa, J.A.Real|2009|Angew.Chem.,Int.Ed.|48|8944|doi:10.1002/anie.200904379

catena-(tetrakis(mu~2~-cyano)-(mu~2~-pyrazine)-bromo-iron-platinum)Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1521585: Experimental Crystal Structure Determination

2016

Related Article: Francisco Javier Valverde-Muñoz, MaksymSeredyuk, M. Carmen Muñoz, Kateryna Znovjyak, IgorO. Fritsky, and José Antonio Real|2016|Inorg.Chem.|55|10654|doi:10.1021/acs.inorgchem.6b01901

catena-[tetrakis(mu-cyano)-bis(2-fluoropyrazine)-iron(ii)-palladium(ii)]Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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