Compounds, particularly compounds having activity as modulators of cadherin-mediated cell adhesion having the following structure:
or a pharmaceutically acceptable salt, stereoisomer or prodrug thereof,
wherein R
1
, R
2
, R
3
, R
4
, R
5
, R
6
, A, X, Y, Z, m and n are as defined herein. Methods associated with preparation and use of the same, as well as pharmaceutical compositions containing the same, are also disclosed.
Heterocyclic aromatic compounds useful as growth hormone secretagogues
申请人:Bristol-Myers Squibb Company
公开号:EP2570414B1
公开(公告)日:2017-08-30
An efficient and recyclable heterogeneous catalytic system for the synthesis of 1,2,4-triazoles using air as the oxidant
作者:Xu Meng、Chaoying Yu、Peiqing Zhao
DOI:10.1039/c3ra47029f
日期:——
Copper–zinc supported on Al2O3–TiO2 was found as a simple and efficient heterogeneous catalyst for the oxidative synthesis of 1,2,4-triazole derivatives using air as the green oxidant under ligand-, base- and additive-free conditions. The heterogeneous reactions carried out smoothly with a large range of substrates, including NO2-, vinyl-, pyrimidine- and imidazole-contained starting materials, and provided corresponding triazoles in moderate to excellent yields with low catalyst loading (1.6 mol%). Furthermore, the catalyst can be simply recycled many times without significant loss in catalytic activity.