Synthesis of novel 17-(5’-iodo)triazolyl-3-methoxyestrane epimers via Cu(I)-catalyzed azide-alkyne cycloadditon, and an evaluation of their cytotoxic activity in vitro

Abstract The regioselective Cu(I)-catalyzed 1,3-dipolar cycloaddition of 3-methoxyestrane 17α- and 17β-azide epimers (3 and 5) with different terminal alkynes afforded novel 1,4-substituted triazolyl derivatives (8a-c and 10a-c). If the Ph3P in the classical CuAAC process was repleaced by Et3N, the...

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Elmentve itt :
Bibliográfiai részletek
Szerzők: Schneider Gyula
Görbe Tamás Ferenc
Mernyák Erzsébet
Wölfling János
Holczbauer Tamás
Czugler Mátyás
Sohár Pál
Minorics Renáta
Zupkó István
Dokumentumtípus: Cikk
Megjelent: 2015
Sorozat:STEROIDS 98
doi:10.1016/j.steroids.2015.02.018

mtmt:2851809
Online Access:http://publicatio.bibl.u-szeged.hu/6926
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245 1 0 |a Synthesis of novel 17-(5’-iodo)triazolyl-3-methoxyestrane epimers via Cu(I)-catalyzed azide-alkyne cycloadditon, and an evaluation of their cytotoxic activity in vitro  |h [elektronikus dokumentum] /  |c  Schneider Gyula 
260 |c 2015 
300 |a 153-165 
490 0 |a STEROIDS  |v 98 
520 3 |a Abstract The regioselective Cu(I)-catalyzed 1,3-dipolar cycloaddition of 3-methoxyestrane 17α- and 17β-azide epimers (3 and 5) with different terminal alkynes afforded novel 1,4-substituted triazolyl derivatives (8a-c and 10a-c). If the Ph3P in the classical CuAAC process was repleaced by Et3N, the formation of small quantities of 5-iodotriazoles (9a-c and 11a-c) was observed. For the preparation of 5-iodo-1,2,3-triazoles (9a-c and 11a-c), an improved method was developed, directly from steroidal azides and terminal alkynes, in reactions mediated by CuI and ICl as iodinating agents. The antiproliferative activities of the structurally related triazoles were determined in vitro with the microculture tetrazolium assay on six malignant human cell lines of gynecological origin (HeLa, A2780, MCF7, MB-231, MB-361 and T47D). X-ray analysis revealed the presence of the iodo substituent on the 1,2,3-triazole ring. 
700 0 1 |a Görbe Tamás Ferenc  |e aut 
700 0 1 |a Mernyák Erzsébet  |e aut 
700 0 1 |a Wölfling János  |e aut 
700 0 1 |a Holczbauer Tamás  |e aut 
700 0 1 |a Czugler Mátyás  |e aut 
700 0 1 |a Sohár Pál  |e aut 
700 0 1 |a Minorics Renáta  |e aut 
700 0 1 |a Zupkó István  |e aut 
856 4 0 |u http://publicatio.bibl.u-szeged.hu/6926/1/135_Steroids_2015.pdf  |z Dokumentum-elérés