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Wyszukujesz frazę "isoxazoles" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Synthesis, immunosuppressive properties, mechanism of action and X-ray analysis of a new class of isoxazole derivatives
Autorzy:
Bąchor, Urszula
Ryng, Stanisław
Mączyński, Marcin
Artym, Jolanta
Kocięba, Maja
Zaczyńska, Ewa
Kochanowska, Iwona
Tykarska, Ewa
Zimecki, Michał
Powiązania:
https://bibliotekanauki.pl/articles/895268.pdf
Data publikacji:
2019-04-30
Wydawca:
Polskie Towarzystwo Farmaceutyczne
Tematy:
apoptosis
proliferation
isoxazoles
Passerini three-component reaction
Jurkat cells
Opis:
In the search for potential therapeutics, isoxazole derivatives are still objects of interest. Previously described immunoregulatory properties of 5-amino-3-methyl-4-isoxazolecarboxylic acid (AC) benzylamides prompted us to synthesize a new class of compounds of immunotropic activity. A series of new compounds containing the isoxazole moiety were synthesized using Passerini three-component reaction. The effects on phytohemagglutinin A (PHA)-induced proliferation of human peripheral blood mononuclear cells (PBMC), production of tumor necrosis factor alpha (TNF α) in human whole blood cultures stimulated with lipopolysaccharide (LPS) and two-way mixed lymphocyte reaction (MLR) of PBMC, were investigated. Also, the effect of 1-(cyclohexylcarbamoyl)cyclohexyl 5-amino-3-methylisoxazole-4-carboxylate (PUB1) on the expression of signaling molecules associated with cell apoptosis in Jurkat cells was also determined. The results showed that the compounds inhibited to various degree mitogen-induced PBMC proliferation in a dose-dependent manner and TNF α production at 10 μg/ml. PUB1 compound, selected on the basis of its strongest antiproliferative activity, was also shown to inhibit MLR. The molecular data suggest that immunosuppressive action of PUB1 depended on induction of Fas and elevation of caspase 8 expression. In summary, we revealed immunosuppressive properties of a new class of isoxazoles and established the mechanism of action of a representative PUB1 compound.
Źródło:
Acta Poloniae Pharmaceutica - Drug Research; 2019, 76, 2; 251-263
0001-6837
2353-5288
Pojawia się w:
Acta Poloniae Pharmaceutica - Drug Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthesis and Biological Evaluation of Some New Pyridines, Isoxazoles and Isoxazolopyridazines Bearing 1,2,3-Triazole Moiety
Autorzy:
hassan, anhar
Rashdan, Huda R.
nabil, sara
elnagar, dina
Powiązania:
https://bibliotekanauki.pl/articles/895401.pdf
Data publikacji:
2019-06-28
Wydawca:
Polskie Towarzystwo Farmaceutyczne
Tematy:
antimicrobial activity
3-Triazoles
isoxazoles
Hepatic cancer
Pyridines
Isoxazolopyridazines
Opis:
Some new isoxazole derivatives 3a-d were synthesized via the reaction of 3-(dimethylamino)-1-(5-methyl-1-(3-nitrophenyl)-1H-1,2,3-triazol-4-yl)prop-2-en-1-one (1) with different hydroximoyl chlorides derivatives 2a-d. From these new isoxazoles 3a-d a new series of isoxazolopyridazines 4a-d was derived using hydrazine hydrate. In addition, enaminone 1 was reacted with ethyl acetoacetate to afford the corresponding ester derivative 6, the latter was submitted to react with different chemical reagents to obtain a variety of bioactive substituted pyridine derivatives. The azido derivative 14, was used as the key molecule for the synthesis of new urea and aryl carbamate derivatives upon its reaction with different amines and phenol through Curtius rearrangement. The chemical structures of all new compounds were investigated from their spectral and microanalytical data. The synthesized compounds were tested for their pharmacological potency as, anti-hepatic cancer and anti-microbial agents. Most of the tested compounds showed good anti-hepatic cancer results comparing with the standard drug doxorubicin especially when their toxic effects on the normal cell lines were studied. Referring to the anti-microbial test most of the compounds showed strong effects.
Źródło:
Acta Poloniae Pharmaceutica - Drug Research; 2019, 76, 3; 469-482
0001-6837
2353-5288
Pojawia się w:
Acta Poloniae Pharmaceutica - Drug Research
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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