Roy, Bhairab Nath; Singh, Girij Pal; George, Shaji K., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 2014, vol. 53, # 5, p. 610 - 618
Reinvestigating Raney nickel mediated selective alkylation of amines with alcohols via hydrogen autotransfer methodology
作者:Astha Mehta、A. Thaker、V. Londhe、Santosh R. Nandan
DOI:10.1016/j.apcata.2014.04.009
日期:2014.5
efficient, cost-effective use of Raneynickel (R-Ni) a widely used industrial catalyst for N-alkylation using alcohols is highlighted here. The work describes the scope and capability of R-Ni in hydrogen autotransfer reactions enabling its widespread use in the Chemical and Pharmaceutical industry. R-Ni of W4, T4, and W7 grades were prepared and evaluated for alkylation of amines. The best activity and
[EN] TRIAZOLE COMPOUNDS AND THEIR USE AS GAMMA SECRETASE MODULATORS<br/>[FR] COMPOSÉS TRIAZOLE ET UTILISATION DE CES DERNIERS EN TANT QUE MODULATEURS DE LA GAMMA-SÉCRÉTASE
申请人:ACTURUM LIFE SCIENCE AB
公开号:WO2014195322A1
公开(公告)日:2014-12-11
The present invention relates to compounds of formula (I) and pharmaceutically acceptable salts thereof. The invention also relates to pharmaceutical compositions comprising these compounds, to processes for making these compounds, and to their use as medicaments for treatment and/or prevention of Αβ-related diseases.
TRIAZOLE COMPOUNDS AND THEIR USE AS GAMMA SECRETASE MODULATORS
申请人:ACTURUM LIFE SCIENCE AB
公开号:US20160108022A1
公开(公告)日:2016-04-21
The present invention relates to compounds of formula (I) and pharmaceutically acceptable salts thereof. The invention also relates to pharmaceutical compositions comprising these compounds, to processes for making these compounds, and to their use as medicaments for treatment and/or prevention of Aβ-related diseases.
Synthesis of 1-Alkyl-5-amino-1,2,4-triazoles Based on Nucleophilic Substitution and Reduction Reactions
作者:V. V. Tolstyakov
DOI:10.1134/s1070428018100160
日期:2018.10
A series of 1-alkyl-5-amino-1H-1,2,4-triazoles were synthesized starting from 3,5-dibromo-1H- 1,2,4-triazole by alkylation and subsequent nucleophilic substitution of the 5-bromine atom by azido group, reduction of the latter to amino group, and hydrodebromination.
The First Versatile Synthesis of 1-Alkyl-3-fluoro-1H-[1,2,4]triazoles
作者:Albrecht Zumbrunn
DOI:10.1055/s-1998-6080
日期:1998.9
Reaction of 1-benzyl-3,5-dibromo-1H-[1,2,4]triazole (3) with cesium fluoride yielded selectively 1-benzyl-3-bromo-5-fluoro-1H-[1,2,4]triazole (4). Debenzylation and realkylation afforded 1-alkyl-5-bromo-3-fluoro-1H-[1,2,4]triazoles 7, which reacted with a wide variety of nucleophiles to give 5-substituted 1-alkyl-3-fluoro-1H-[1,2,4]triazoles.