Results 101 to 110 of about 14,696 (253)

Антивирусное и интерферониндуцирующее действие аминоэтоксидифенилов [PDF]

open access: yes, 2015
Проблематика. Новосинтезованим сполукам 4,4′-біс-(2-R-етокси)біфенілам притаманні як інтеркаляція в ДНК, так і противірусна активність та здатність індукувати інтерферон. Мета дослідження.
Shemendyuk, O. V.   +11 more
core  

Improved catalytic activity of ruthenium–arene complexes in the reduction of NAD+ [PDF]

open access: yes, 2012
A series of neutral Ru-II half-sandwich complexes of the type [(eta(6)-arene)Ru(N,N')Cl] where the arene is para-cymene (p-cym), hexamethylbenzene (hmb), biphenyl (bip), or benzene (bn) and N,N' is N-(2-aminoethyl) -4-(trifluoromethyl)benzenesulfonamide (
Abraha Habtemariam   +52 more
core   +2 more sources

SYNTHESIS OF QUINOXALINES

open access: yes, 2023
Quinoxalines are a group of antibiotics widely used in medicine to fight bacterial infections.These antibiotics have a broad spectrum of action and belong to the class of 4 quinolones. Theirmechanism of action is based on inhibiting the activity of bacterial enzymes responsible for DNAsynthesis, which leads to their death. Due to this, quinoxalines are
openaire   +1 more source

Imidazolo [1,2-a] e 1,2,4-triazolo[4,3-a] chinossaline analoghe degli antifolici metotrexato e trimetrexato [PDF]

open access: yes, 2002
Abbiamo progettato una nuova serie di chinossaline, nelle quali l’anello pirrolico è stato sostituito con un’anello imidazolico o con uno triazolico lasciando nelle posizioni 2, 5, 6, 7 e 8 dell’anello chinossalinico gli stessi sostituenti ...
Corona, Paola   +5 more
core  

Design, Synthesis, and Biological Evaluation of Novel Thiazolidinone-Containing Quinoxaline-1,4-di-N-oxides as Antimycobacterial and Antifungal Agents [PDF]

open access: gold, 2020
Heying Zhang   +9 more
openalex   +1 more source

Unexpected Reduction of Ethyl 3-Phenylquinoxaline-2- carboxylate 1,4-Di-N-oxide Derivatives by Amines

open access: yesMolecules, 2008
The unexpected tendency of amines and functionalized hydrazines to reduceethyl 3-phenylquinoxaline-2-carboxylate 1,4-di-N-oxide (1) to afford a quinoxaline 1c andmono-oxide quinoxalines 1a and 1b is described. The experimental conditions werestandardized
Antonio Monge   +5 more
doaj   +1 more source

2-Phenylthieno[2,3-b]quinoxaline

open access: yesActa Crystallographica Section E Structure Reports Online, 2012
The title compound, C(16)H(10)N(2)S, is almost planar (r.m.s. deviation for all non-H atoms = 0.080 Å). The dihedral angle between the three fused-ring system and the phenyl ring is 9.26 (3)°. The S atom and the opposite C atom of the thio-phene ring are mutually disordered with an occupancy ratio of 0.7706 (19):0.2294 (19).
Youssef Ramli   +4 more
openaire   +3 more sources

Heterocyclic systems containing bridgehead nitrogen atom: Synthesis and antimicrobial activity of thiadiazolo[2′,3′:2,3]imidazo[4,5-B]quinoxaline

open access: yesJournal of Saudi Chemical Society, 2016
Drugs for the drug-resistant bacterial strains constitute one of the most essential challenges for medicine now-a-days. Seven derivatives of thiadiazolo[2′,3′:2,3]imidazo [4,5-b]quinoxalines were synthesized for potential antimicrobial agents.
Ramakrishna Teja   +4 more
doaj   +1 more source

Транспортные свойства ионообменных мембран в растворах нитрата аммония [PDF]

open access: yes, 2008
З метою вивчення можливості застосування електродіалізу для знесолення стічних вод, що містять з'єднання аміаку вивчена електрохімічна поведінка гетерогенних іонообмінних мембран МК-40 і МА-40 у розчинах нітрату й хлориду й амонію.
Медянцева, Д. Г.   +1 more
core  

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