80636-30-2Relevant academic research and scientific papers
SUBSTITUTED, SATURATED AND UNSATURATED N-HETEROCYCLIC CARBOXAMIDES AND RELATED COMPOUNDS FOR THEIR USE IN THE TREATMENT OF MEDICAL DISORDERS
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, (2021/04/01)
The invention provides substituted, saturated and unsaturated N-heterocyclic carboxamides and related compounds, compositions containing such compounds, medical kits, and methods for using such compounds and compositions to treat medical disorders, e.g., cancer, lysosomal storage disorder, neurodegenerative disorder, inflammatory disorder, in a patient.
Some Aspects of the Azide-Alkyne 1,3-Dipolar Cycloaddition Reaction
Pokhodylo,Tupychak,Shyyka, O. Ya.,Obushak
, p. 1310 - 1321 (2019/11/03)
Some peculiar features of two most commonly used catalytic systems (Cul and CuSOVsodium ascorbate) controlling the regioselectivity of 1,3-dipolar cycloaddition of azides to terminal alkynes have been studied. Their potentialities, main disadvantages, and limitations have been demonstrated by a number of examples, including reactions of low-molecular-weight azides and alkynes containing heterocyclic substituents. The possibility of using novel reagents in click reactions is discussed.
Practical synthesis of 3,3-substituted dihydroquinoxalin-2-ones from aryl 1,2-diamines using the Bargellini reaction
Alanine, Thomas A.,Stokes, Stephen,Scott, James S.
, p. 4386 - 4388 (2016/09/13)
The reaction of aromatic 1,2-diamines with trichloromethylcarbinols under mild, basic phase-transfer conditions provided expedient access to 3,3-disubsituted quinoxalin-2(1H)-ones in good to moderate yields. The use of unsymmetrical aryl diamines gave a r
Efficient synthesis of useful heterocycles via transition metal-catalyzed cascade processes
Tanimori, Shinji,Inaba, Ushio,Kato, Yoshihiro,Ura, Haruna,Kashiwagi, Hiroaki,Nishimura, Takeshi,Kirihata, Mitsunori
, p. 2157 - 2164 (2014/06/24)
This paper reports our recent results from synthesis of some useful heterocycles, for example oxazolidinones, indoles, and quinoxalinones, by transition metal-catalyzed cascade processes. The scope and limitations of these procedures and the reaction mech
A new facile, efficient synthesis and structure peculiarity of quinoxaline derivatives with two benzimidazole fragments
Mamedov, Vakhid A.,Zhukova, Nataliya A.,Syakaev, Victor V.,Gubaidullin, Aidar T.,Beschastnova, Tat'Yana N.,Adgamova, Dil'Bar I.,Samigullina, Aida I.,Latypov, Shamil K.
supporting information, p. 1403 - 1416 (2013/02/23)
A highly efficient and versatile method for the synthesis of quinoxaline derivatives with two benzimidazole fragments have been developed on the basis of the ring contraction of 3-(benzimidazo-2-yl)quinoxalin-2(1H)-one with 1,2-diaminobenzene and its various types of substituted and condensed derivatives. Owing to the inter- and intramolecular processes, involving self association, proton exchange, conformational, and/or tautomeric exchanges between several forms for most of the bis-benzimidazolylquinoxalines signals of bridged and neighboring carbon atoms and the hydrogen atoms of the neighboring carbon atoms of benzimidazole fragments in the NMR spectra are broadened. The conjugation between the benzimidazole fragments and the quinoxaline core of the molecules is increased from the quinoxaline derivative (10c) to its thiadiazol[f]- (17) and pyrrolo[a]-(19) annulated derivatives, resulting in a greater planarity of the molecule as a whole.
A general and practical access to chiral quinoxalinones with low copper-catalyst loading
Tanimori, Shinji,Kashiwagi, Hiroaki,Nishimura, Takeshi,Kirihata, Mitsunori
supporting information; experimental part, p. 2531 - 2537 (2010/12/29)
A general, straightforward, and practical access to multi-substituted chiral quinoxalin-2-ones has been achieved based on the copper(I) chloride-dimethylethylenediamine (DMEDA) catalyst system. With the use of 1 mol% copper(I) chloride, structurally diverse quinoxalin-2-ones were generated with high optical purity from readily available starting materials, 2-haloanilines and α-amino acids, in a one-pot manner.
Synthesis of novel quinoxaline derivatives and its cytotoxic activities
Tanimori, Shinji,Nishimura, Takeshi,Kirihata, Mitsunori
experimental part, p. 4119 - 4121 (2010/04/29)
Substituted dihydroquinozalin-2-ones (1-16) have been synthesized easily by the use of copper-catalyzed coupling method. The reactions of 2-haloanilines with a variety of α-amino acids in the presence of copper (I) iodide gave corresponding 3-substituted
Palladium-catalyzed synthesis of quinoxaline derivatives
Wallace, Jeffery M.,S?derberg, Bj?rn C.G.,Tamariz, Joaquín,Akhmedov, Novruz G.,Hurley, Mathew T.
, p. 9675 - 9684 (2008/12/22)
A palladium-catalyzed reductive N-heteroannulation of enamines derived from 2-nitrobenzenamines forming mixtures of 1,2-dihydroquinoxalines and 3,4-dihydroquinoxalin-2-ones is described. The reactions are performed using bis(dibenzylideneacetone)palladium(0), 1,3-bis(diphenylphosphino)propane, and 1,10-phenanthroline in DMF under 6 atm of carbon monoxide at 70 °C.
BENZOXAZINES AND RELATED NITROGEN-CONTAINING HETEROBICYCLIC COMPOUNDS USEFUL AS MINERALOCORTICOID RECEPTOR MODULATING AGENTS
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Page/Page column 81-82, (2008/06/13)
The present invention relates to a compound, useful as a mineralocorticoid receptor-modulating agent, of the following formula [I]: wherein Ring A is a benzene ring optionally having a substituent(s) other than R1 etc, R1 is a group
Synthetic studies of bioactive quinoxalinones: A facile approach to potent euglycemic and hypolipidemic agents
Kamila, Sukanta,Biehl, Edward R.
, p. 1931 - 1939 (2007/10/03)
Substituted quinoxalin-2-ones have been prepared in high yields in a one-pot reaction in which a 1:1 mixture of 1,2-diaminobenzene and appropriate ethyl 2-bromoalkyl/aryl acetate is subjected to microwave irradiation in presence of DBU at 190 °C for 6 min
