Pyridine- and Pyrimidinecarboxamides as CXCR2 Modulators
申请人:Maeda Dean Y.
公开号:US20100210593A1
公开(公告)日:2010-08-19
There is disclosed pyridine- and pyrimidinecarboxamide compounds useful as pharmaceutical agents, synthesis processes, and pharmaceutical compositions which include pyridine- and pyrimidinecarboxamides compounds. More specifically, there is disclosed a genus of CXCR2 inhibitor compounds that are useful for treating a variety of inflammatory and neoplastic disorders.
A novel method for the synthesis of 5-substituted 1H-tetrazoles using diphenyl phosphorazidate (DPPA) has been developed. Aromatic and aliphatic aldoximes underwent cycloaddition to afford the corresponding 5-substituted 1H-tetrazoles with ease and efficiency.
Facile one-pot preparation of 5-aryltetrazoles and 3-arylisoxazoles from aryl bromides
作者:Eiji Kobayashi、Hideo Togo
DOI:10.1016/j.tet.2018.06.044
日期:2018.8
The successive treatment of aryl bromides with n-BuLi, DMF, hydroxylaminehydrochloride, and finally diphenylphosphoryl azide provided efficiently the corresponding 5-aryltetrazoles in good to moderate yields. Similarly, the successive treatment of aryl bromides with n-BuLi, DMF, hydroxylaminehydrochloride, and finally diethyl acetylenedicarboxylate and Oxone® provided efficiently the corresponding
Boehmite nanoparticles were immobilized with a new type of nickel complex and applied for the synthesis of 5-substituted 1H-tetrazole derivatives in PEG-400.
Herein, we report the synthesis and application of Cu(II) immobilized on Fe3O4@SiO2@l-Histidine, which was characterized by FTIR spectroscopy, X-ray diffraction, thermogravimetric analysis, scanning electron microscopy and atomic absorption spectroscopy. The obtained nanoparticles were employed as a heterogeneous catalyst for the synthesis of 5-substituted1H-tetrazoles via [3+2] cycloaddition reactions